Home / 91,790.51-137,591.04-38,513.43

Finding the Fourth Proportional to 91,790.51, 137,591.04 and 38,513.43

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Solution

The fourth proportional to 91,790.51, 137,591.04 and 38,513.43 is: 57,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,790.51 : 137,591.04 = 38,513.43 : x
  2. Step 2: Convert to fraction form
    91,790.51/137,591.04 = 38,513.43/x
  3. Step 3: Cross multiply
    91,790.51x = 137,591.04 × 38,513.43
  4. Step 4: Simplify right side
    91,790.51x = 5,299,102,887.67
  5. Step 5: Solve for x
    x = 5,299,102,887.67/91,790.51
  6. Step 6: Final answer
    x = 57,730.40

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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.