Home / 74,158.12-102,338.40-40,624.12

Finding the Fourth Proportional to 74,158.12, 102,338.40 and 40,624.12

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Solution

The fourth proportional to 74,158.12, 102,338.40 and 40,624.12 is: 56,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,158.12 : 102,338.40 = 40,624.12 : x
  2. Step 2: Convert to fraction form
    74,158.12/102,338.40 = 40,624.12/x
  3. Step 3: Cross multiply
    74,158.12x = 102,338.40 × 40,624.12
  4. Step 4: Simplify right side
    74,158.12x = 4,157,407,442.21
  5. Step 5: Solve for x
    x = 4,157,407,442.21/74,158.12
  6. Step 6: Final answer
    x = 56,061.39

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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.