Home / 74,740.23-103,141.45-40,748.71

Finding the Fourth Proportional to 74,740.23, 103,141.45 and 40,748.71

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Solution

The fourth proportional to 74,740.23, 103,141.45 and 40,748.71 is: 56,233.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,740.23 : 103,141.45 = 40,748.71 : x
  2. Step 2: Convert to fraction form
    74,740.23/103,141.45 = 40,748.71/x
  3. Step 3: Cross multiply
    74,740.23x = 103,141.45 × 40,748.71
  4. Step 4: Simplify right side
    74,740.23x = 4,202,881,035.03
  5. Step 5: Solve for x
    x = 4,202,881,035.03/74,740.23
  6. Step 6: Final answer
    x = 56,233.18

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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.