Home / 90,740.61-136,110.92-37,431.81

Finding the Fourth Proportional to 90,740.61, 136,110.92 and 37,431.81

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Solution

The fourth proportional to 90,740.61, 136,110.92 and 37,431.81 is: 56,147.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,740.61 : 136,110.92 = 37,431.81 : x
  2. Step 2: Convert to fraction form
    90,740.61/136,110.92 = 37,431.81/x
  3. Step 3: Cross multiply
    90,740.61x = 136,110.92 × 37,431.81
  4. Step 4: Simplify right side
    90,740.61x = 5,094,877,909.21
  5. Step 5: Solve for x
    x = 5,094,877,909.21/90,740.61
  6. Step 6: Final answer
    x = 56,147.72

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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.