Home / 74,272.50-102,496.05-40,737.78

Finding the Fourth Proportional to 74,272.50, 102,496.05 and 40,737.78

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Solution

The fourth proportional to 74,272.50, 102,496.05 and 40,737.78 is: 56,218.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.50 : 102,496.05 = 40,737.78 : x
  2. Step 2: Convert to fraction form
    74,272.50/102,496.05 = 40,737.78/x
  3. Step 3: Cross multiply
    74,272.50x = 102,496.05 × 40,737.78
  4. Step 4: Simplify right side
    74,272.50x = 4,175,461,535.77
  5. Step 5: Solve for x
    x = 4,175,461,535.77/74,272.50
  6. Step 6: Final answer
    x = 56,218.14

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1.5x scale

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.