Home / 63,123.71-87,142.26-39,258.07

Finding the Fourth Proportional to 63,123.71, 87,142.26 and 39,258.07

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Solution

The fourth proportional to 63,123.71, 87,142.26 and 39,258.07 is: 54,195.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,123.71 : 87,142.26 = 39,258.07 : x
  2. Step 2: Convert to fraction form
    63,123.71/87,142.26 = 39,258.07/x
  3. Step 3: Cross multiply
    63,123.71x = 87,142.26 × 39,258.07
  4. Step 4: Simplify right side
    63,123.71x = 3,421,036,872.40
  5. Step 5: Solve for x
    x = 3,421,036,872.40/63,123.71
  6. Step 6: Final answer
    x = 54,195.76

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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.