Home / 91,521.86-126,302.29-51,234.58

Finding the Fourth Proportional to 91,521.86, 126,302.29 and 51,234.58

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Solution

The fourth proportional to 91,521.86, 126,302.29 and 51,234.58 is: 70,704.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,521.86 : 126,302.29 = 51,234.58 : x
  2. Step 2: Convert to fraction form
    91,521.86/126,302.29 = 51,234.58/x
  3. Step 3: Cross multiply
    91,521.86x = 126,302.29 × 51,234.58
  4. Step 4: Simplify right side
    91,521.86x = 6,471,044,781.19
  5. Step 5: Solve for x
    x = 6,471,044,781.19/91,521.86
  6. Step 6: Final answer
    x = 70,704.91

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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.