Home / 90,487.27-135,687.69-53,058.74

Finding the Fourth Proportional to 90,487.27, 135,687.69 and 53,058.74

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Solution

The fourth proportional to 90,487.27, 135,687.69 and 53,058.74 is: 79,562.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,487.27 : 135,687.69 = 53,058.74 : x
  2. Step 2: Convert to fraction form
    90,487.27/135,687.69 = 53,058.74/x
  3. Step 3: Cross multiply
    90,487.27x = 135,687.69 × 53,058.74
  4. Step 4: Simplify right side
    90,487.27x = 7,199,417,864.91
  5. Step 5: Solve for x
    x = 7,199,417,864.91/90,487.27
  6. Step 6: Final answer
    x = 79,562.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.