Home / 91,312.07-136,983.56-28,130.85

Finding the Fourth Proportional to 91,312.07, 136,983.56 and 28,130.85

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Solution

The fourth proportional to 91,312.07, 136,983.56 and 28,130.85 is: 42,201.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,312.07 : 136,983.56 = 28,130.85 : x
  2. Step 2: Convert to fraction form
    91,312.07/136,983.56 = 28,130.85/x
  3. Step 3: Cross multiply
    91,312.07x = 136,983.56 × 28,130.85
  4. Step 4: Simplify right side
    91,312.07x = 3,853,463,838.17
  5. Step 5: Solve for x
    x = 3,853,463,838.17/91,312.07
  6. Step 6: Final answer
    x = 42,201.04

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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.