Home / 91,588.91-137,392.68-31,609.58

Finding the Fourth Proportional to 91,588.91, 137,392.68 and 31,609.58

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Solution

The fourth proportional to 91,588.91, 137,392.68 and 31,609.58 is: 47,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,588.91 : 137,392.68 = 31,609.58 : x
  2. Step 2: Convert to fraction form
    91,588.91/137,392.68 = 31,609.58/x
  3. Step 3: Cross multiply
    91,588.91x = 137,392.68 × 31,609.58
  4. Step 4: Simplify right side
    91,588.91x = 4,342,924,909.87
  5. Step 5: Solve for x
    x = 4,342,924,909.87/91,588.91
  6. Step 6: Final answer
    x = 47,417.58

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1.5x scale

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.