Home / 91,617.80-137,426.70-39,009.80

Finding the Fourth Proportional to 91,617.80, 137,426.70 and 39,009.80

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Solution

The fourth proportional to 91,617.80, 137,426.70 and 39,009.80 is: 58,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,617.80 : 137,426.70 = 39,009.80 : x
  2. Step 2: Convert to fraction form
    91,617.80/137,426.70 = 39,009.80/x
  3. Step 3: Cross multiply
    91,617.80x = 137,426.70 × 39,009.80
  4. Step 4: Simplify right side
    91,617.80x = 5,360,988,081.66
  5. Step 5: Solve for x
    x = 5,360,988,081.66/91,617.80
  6. Step 6: Final answer
    x = 58,514.70

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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.