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Finding the Fourth Proportional to 84,737.40, 127,114.20 and 25,566.90

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Solution

The fourth proportional to 84,737.40, 127,114.20 and 25,566.90 is: 38,352.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,737.40 : 127,114.20 = 25,566.90 : x
  2. Step 2: Convert to fraction form
    84,737.40/127,114.20 = 25,566.90/x
  3. Step 3: Cross multiply
    84,737.40x = 127,114.20 × 25,566.90
  4. Step 4: Simplify right side
    84,737.40x = 3,249,916,039.98
  5. Step 5: Solve for x
    x = 3,249,916,039.98/84,737.40
  6. Step 6: Final answer
    x = 38,352.79

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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.