Home / 91,715.71-126,514.06-57,670.30

Finding the Fourth Proportional to 91,715.71, 126,514.06 and 57,670.30

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Solution

The fourth proportional to 91,715.71, 126,514.06 and 57,670.30 is: 79,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,715.71 : 126,514.06 = 57,670.30 : x
  2. Step 2: Convert to fraction form
    91,715.71/126,514.06 = 57,670.30/x
  3. Step 3: Cross multiply
    91,715.71x = 126,514.06 × 57,670.30
  4. Step 4: Simplify right side
    91,715.71x = 7,296,103,794.42
  5. Step 5: Solve for x
    x = 7,296,103,794.42/91,715.71
  6. Step 6: Final answer
    x = 79,551.30

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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.