Home / 91,428.52-126,181.82-51,152.48

Finding the Fourth Proportional to 91,428.52, 126,181.82 and 51,152.48

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Solution

The fourth proportional to 91,428.52, 126,181.82 and 51,152.48 is: 70,596.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,428.52 : 126,181.82 = 51,152.48 : x
  2. Step 2: Convert to fraction form
    91,428.52/126,181.82 = 51,152.48/x
  3. Step 3: Cross multiply
    91,428.52x = 126,181.82 × 51,152.48
  4. Step 4: Simplify right side
    91,428.52x = 6,454,513,023.91
  5. Step 5: Solve for x
    x = 6,454,513,023.91/91,428.52
  6. Step 6: Final answer
    x = 70,596.28

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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.