Home / 91,495.07-137,255.72-28,320.74

Finding the Fourth Proportional to 91,495.07, 137,255.72 and 28,320.74

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Solution

The fourth proportional to 91,495.07, 137,255.72 and 28,320.74 is: 42,485.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,495.07 : 137,255.72 = 28,320.74 : x
  2. Step 2: Convert to fraction form
    91,495.07/137,255.72 = 28,320.74/x
  3. Step 3: Cross multiply
    91,495.07x = 137,255.72 × 28,320.74
  4. Step 4: Simplify right side
    91,495.07x = 3,887,182,731.75
  5. Step 5: Solve for x
    x = 3,887,182,731.75/91,495.07
  6. Step 6: Final answer
    x = 42,485.16

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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.