Home / 74,140.11-102,320.67-42,313.77

Finding the Fourth Proportional to 74,140.11, 102,320.67 and 42,313.77

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Solution

The fourth proportional to 74,140.11, 102,320.67 and 42,313.77 is: 58,397.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,140.11 : 102,320.67 = 42,313.77 : x
  2. Step 2: Convert to fraction form
    74,140.11/102,320.67 = 42,313.77/x
  3. Step 3: Cross multiply
    74,140.11x = 102,320.67 × 42,313.77
  4. Step 4: Simplify right side
    74,140.11x = 4,329,573,296.63
  5. Step 5: Solve for x
    x = 4,329,573,296.63/74,140.11
  6. Step 6: Final answer
    x = 58,397.18

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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.