Home / 91,374.28-126,123.21-53,142.76

Finding the Fourth Proportional to 91,374.28, 126,123.21 and 53,142.76

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Solution

The fourth proportional to 91,374.28, 126,123.21 and 53,142.76 is: 73,352.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,374.28 : 126,123.21 = 53,142.76 : x
  2. Step 2: Convert to fraction form
    91,374.28/126,123.21 = 53,142.76/x
  3. Step 3: Cross multiply
    91,374.28x = 126,123.21 × 53,142.76
  4. Step 4: Simplify right side
    91,374.28x = 6,702,535,479.46
  5. Step 5: Solve for x
    x = 6,702,535,479.46/91,374.28
  6. Step 6: Final answer
    x = 73,352.54

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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.