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Finding the Fourth Proportional to 74,737.68, 112,106.52 and 71,000.40

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Solution

The fourth proportional to 74,737.68, 112,106.52 and 71,000.40 is: 106,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,737.68 : 112,106.52 = 71,000.40 : x
  2. Step 2: Convert to fraction form
    74,737.68/112,106.52 = 71,000.40/x
  3. Step 3: Cross multiply
    74,737.68x = 112,106.52 × 71,000.40
  4. Step 4: Simplify right side
    74,737.68x = 7,959,607,762.61
  5. Step 5: Solve for x
    x = 7,959,607,762.61/74,737.68
  6. Step 6: Final answer
    x = 106,500.60

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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.