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Finding the Fourth Proportional to 90,041.76, 124,254 and 52,313.04

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Solution

The fourth proportional to 90,041.76, 124,254 and 52,313.04 is: 72,189.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,041.76 : 124,254 = 52,313.04 : x
  2. Step 2: Convert to fraction form
    90,041.76/124,254 = 52,313.04/x
  3. Step 3: Cross multiply
    90,041.76x = 124,254 × 52,313.04
  4. Step 4: Simplify right side
    90,041.76x = 6,500,104,472.16
  5. Step 5: Solve for x
    x = 6,500,104,472.16/90,041.76
  6. Step 6: Final answer
    x = 72,189.89

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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.