Home / 91,390.28-126,119.46-53,665.16

Finding the Fourth Proportional to 91,390.28, 126,119.46 and 53,665.16

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Solution

The fourth proportional to 91,390.28, 126,119.46 and 53,665.16 is: 74,058.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,390.28 : 126,119.46 = 53,665.16 : x
  2. Step 2: Convert to fraction form
    91,390.28/126,119.46 = 53,665.16/x
  3. Step 3: Cross multiply
    91,390.28x = 126,119.46 × 53,665.16
  4. Step 4: Simplify right side
    91,390.28x = 6,768,221,000.01
  5. Step 5: Solve for x
    x = 6,768,221,000.01/91,390.28
  6. Step 6: Final answer
    x = 74,058.43

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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.