Home / 91,897.02-126,814.68-56,146.86

Finding the Fourth Proportional to 91,897.02, 126,814.68 and 56,146.86

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Solution

The fourth proportional to 91,897.02, 126,814.68 and 56,146.86 is: 77,480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,897.02 : 126,814.68 = 56,146.86 : x
  2. Step 2: Convert to fraction form
    91,897.02/126,814.68 = 56,146.86/x
  3. Step 3: Cross multiply
    91,897.02x = 126,814.68 × 56,146.86
  4. Step 4: Simplify right side
    91,897.02x = 7,120,246,083.90
  5. Step 5: Solve for x
    x = 7,120,246,083.90/91,897.02
  6. Step 6: Final answer
    x = 77,480.71

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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.