Home / 74,313.50-102,552.63-40,781.66

Finding the Fourth Proportional to 74,313.50, 102,552.63 and 40,781.66

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Solution

The fourth proportional to 74,313.50, 102,552.63 and 40,781.66 is: 56,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,313.50 : 102,552.63 = 40,781.66 : x
  2. Step 2: Convert to fraction form
    74,313.50/102,552.63 = 40,781.66/x
  3. Step 3: Cross multiply
    74,313.50x = 102,552.63 × 40,781.66
  4. Step 4: Simplify right side
    74,313.50x = 4,182,266,488.77
  5. Step 5: Solve for x
    x = 4,182,266,488.77/74,313.50
  6. Step 6: Final answer
    x = 56,278.69

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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.