Home / 91,381.65-126,118.40-51,097.92

Finding the Fourth Proportional to 91,381.65, 126,118.40 and 51,097.92

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Solution

The fourth proportional to 91,381.65, 126,118.40 and 51,097.92 is: 70,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,381.65 : 126,118.40 = 51,097.92 : x
  2. Step 2: Convert to fraction form
    91,381.65/126,118.40 = 51,097.92/x
  3. Step 3: Cross multiply
    91,381.65x = 126,118.40 × 51,097.92
  4. Step 4: Simplify right side
    91,381.65x = 6,444,387,658.24
  5. Step 5: Solve for x
    x = 6,444,387,658.24/91,381.65
  6. Step 6: Final answer
    x = 70,521.68

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1.5x scale

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.