Home / 91,345.55-126,072.90-53,116.92

Finding the Fourth Proportional to 91,345.55, 126,072.90 and 53,116.92

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Solution

The fourth proportional to 91,345.55, 126,072.90 and 53,116.92 is: 73,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,345.55 : 126,072.90 = 53,116.92 : x
  2. Step 2: Convert to fraction form
    91,345.55/126,072.90 = 53,116.92/x
  3. Step 3: Cross multiply
    91,345.55x = 126,072.90 × 53,116.92
  4. Step 4: Simplify right side
    91,345.55x = 6,696,604,325.86
  5. Step 5: Solve for x
    x = 6,696,604,325.86/91,345.55
  6. Step 6: Final answer
    x = 73,310.68

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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.