Home / 91,641.28-137,338.80-39,036.64

Finding the Fourth Proportional to 91,641.28, 137,338.80 and 39,036.64

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Solution

The fourth proportional to 91,641.28, 137,338.80 and 39,036.64 is: 58,502.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,641.28 : 137,338.80 = 39,036.64 : x
  2. Step 2: Convert to fraction form
    91,641.28/137,338.80 = 39,036.64/x
  3. Step 3: Cross multiply
    91,641.28x = 137,338.80 × 39,036.64
  4. Step 4: Simplify right side
    91,641.28x = 5,361,245,293.63
  5. Step 5: Solve for x
    x = 5,361,245,293.63/91,641.28
  6. Step 6: Final answer
    x = 58,502.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.