Home / 81,736,516.60-112,823,725.98-48,707,126.80

Finding the Fourth Proportional to 81,736,516.60, 112,823,725.98 and 48,707,126.80

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Solution

The fourth proportional to 81,736,516.60, 112,823,725.98 and 48,707,126.80 is: 67,232,122.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,736,516.60 : 112,823,725.98 = 48,707,126.80 : x
  2. Step 2: Convert to fraction form
    81,736,516.60/112,823,725.98 = 48,707,126.80/x
  3. Step 3: Cross multiply
    81,736,516.60x = 112,823,725.98 × 48,707,126.80
  4. Step 4: Simplify right side
    81,736,516.60x = 5,495,319,527,356,314
  5. Step 5: Solve for x
    x = 5,495,319,527,356,314/81,736,516.60
  6. Step 6: Final answer
    x = 67,232,122.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.