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Finding the Fourth Proportional to 77,503.76, 116,153.52 and 30,731.12

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Solution

The fourth proportional to 77,503.76, 116,153.52 and 30,731.12 is: 46,056.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,503.76 : 116,153.52 = 30,731.12 : x
  2. Step 2: Convert to fraction form
    77,503.76/116,153.52 = 30,731.12/x
  3. Step 3: Cross multiply
    77,503.76x = 116,153.52 × 30,731.12
  4. Step 4: Simplify right side
    77,503.76x = 3,569,527,761.54
  5. Step 5: Solve for x
    x = 3,569,527,761.54/77,503.76
  6. Step 6: Final answer
    x = 46,056.19

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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.