Home / 91,117.08-136,695.03-31,956.30

Finding the Fourth Proportional to 91,117.08, 136,695.03 and 31,956.30

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Solution

The fourth proportional to 91,117.08, 136,695.03 and 31,956.30 is: 47,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,117.08 : 136,695.03 = 31,956.30 : x
  2. Step 2: Convert to fraction form
    91,117.08/136,695.03 = 31,956.30/x
  3. Step 3: Cross multiply
    91,117.08x = 136,695.03 × 31,956.30
  4. Step 4: Simplify right side
    91,117.08x = 4,368,267,387.19
  5. Step 5: Solve for x
    x = 4,368,267,387.19/91,117.08
  6. Step 6: Final answer
    x = 47,941.26

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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.