Home / 63,268.70-87,328.13-39,381.39

Finding the Fourth Proportional to 63,268.70, 87,328.13 and 39,381.39

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Solution

The fourth proportional to 63,268.70, 87,328.13 and 39,381.39 is: 54,357.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,268.70 : 87,328.13 = 39,381.39 : x
  2. Step 2: Convert to fraction form
    63,268.70/87,328.13 = 39,381.39/x
  3. Step 3: Cross multiply
    63,268.70x = 87,328.13 × 39,381.39
  4. Step 4: Simplify right side
    63,268.70x = 3,439,102,948.59
  5. Step 5: Solve for x
    x = 3,439,102,948.59/63,268.70
  6. Step 6: Final answer
    x = 54,357.10

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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.