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Finding the Fourth Proportional to 84,124.71, 125,890.83 and 52,549.63

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Solution

The fourth proportional to 84,124.71, 125,890.83 and 52,549.63 is: 78,639.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,124.71 : 125,890.83 = 52,549.63 : x
  2. Step 2: Convert to fraction form
    84,124.71/125,890.83 = 52,549.63/x
  3. Step 3: Cross multiply
    84,124.71x = 125,890.83 × 52,549.63
  4. Step 4: Simplify right side
    84,124.71x = 6,615,516,222.17
  5. Step 5: Solve for x
    x = 6,615,516,222.17/84,124.71
  6. Step 6: Final answer
    x = 78,639.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.