Home / 81,736,503.64-112,823,708.09-48,707,113.79

Finding the Fourth Proportional to 81,736,503.64, 112,823,708.09 and 48,707,113.79

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Solution

The fourth proportional to 81,736,503.64, 112,823,708.09 and 48,707,113.79 is: 67,232,104.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,736,503.64 : 112,823,708.09 = 48,707,113.79 : x
  2. Step 2: Convert to fraction form
    81,736,503.64/112,823,708.09 = 48,707,113.79/x
  3. Step 3: Cross multiply
    81,736,503.64x = 112,823,708.09 × 48,707,113.79
  4. Step 4: Simplify right side
    81,736,503.64x = 5,495,317,188,187,897
  5. Step 5: Solve for x
    x = 5,495,317,188,187,897/81,736,503.64
  6. Step 6: Final answer
    x = 67,232,104.92

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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.