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Finding the Fourth Proportional to 91,298.52, 125,984.82 and 51,010.20

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Solution

The fourth proportional to 91,298.52, 125,984.82 and 51,010.20 is: 70,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,298.52 : 125,984.82 = 51,010.20 : x
  2. Step 2: Convert to fraction form
    91,298.52/125,984.82 = 51,010.20/x
  3. Step 3: Cross multiply
    91,298.52x = 125,984.82 × 51,010.20
  4. Step 4: Simplify right side
    91,298.52x = 6,426,510,865.16
  5. Step 5: Solve for x
    x = 6,426,510,865.16/91,298.52
  6. Step 6: Final answer
    x = 70,390.09

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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.