Home / 91,711.08-126,568.80-53,992.80

Finding the Fourth Proportional to 91,711.08, 126,568.80 and 53,992.80

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Solution

The fourth proportional to 91,711.08, 126,568.80 and 53,992.80 is: 74,514.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,711.08 : 126,568.80 = 53,992.80 : x
  2. Step 2: Convert to fraction form
    91,711.08/126,568.80 = 53,992.80/x
  3. Step 3: Cross multiply
    91,711.08x = 126,568.80 × 53,992.80
  4. Step 4: Simplify right side
    91,711.08x = 6,833,803,904.64
  5. Step 5: Solve for x
    x = 6,833,803,904.64/91,711.08
  6. Step 6: Final answer
    x = 74,514.49

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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.