Home / 74,502.18-102,827.61-42,692.40

Finding the Fourth Proportional to 74,502.18, 102,827.61 and 42,692.40

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Solution

The fourth proportional to 74,502.18, 102,827.61 and 42,692.40 is: 58,923.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,502.18 : 102,827.61 = 42,692.40 : x
  2. Step 2: Convert to fraction form
    74,502.18/102,827.61 = 42,692.40/x
  3. Step 3: Cross multiply
    74,502.18x = 102,827.61 × 42,692.40
  4. Step 4: Simplify right side
    74,502.18x = 4,389,957,457.16
  5. Step 5: Solve for x
    x = 4,389,957,457.16/74,502.18
  6. Step 6: Final answer
    x = 58,923.88

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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.