Home / 74,158.09-102,345.50-42,331.77

Finding the Fourth Proportional to 74,158.09, 102,345.50 and 42,331.77

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Solution

The fourth proportional to 74,158.09, 102,345.50 and 42,331.77 is: 58,422.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,158.09 : 102,345.50 = 42,331.77 : x
  2. Step 2: Convert to fraction form
    74,158.09/102,345.50 = 42,331.77/x
  3. Step 3: Cross multiply
    74,158.09x = 102,345.50 × 42,331.77
  4. Step 4: Simplify right side
    74,158.09x = 4,332,465,954.88
  5. Step 5: Solve for x
    x = 4,332,465,954.88/74,158.09
  6. Step 6: Final answer
    x = 58,422.03

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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.