Home / 91,218.11-125,881.38-50,929.52

Finding the Fourth Proportional to 91,218.11, 125,881.38 and 50,929.52

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Solution

The fourth proportional to 91,218.11, 125,881.38 and 50,929.52 is: 70,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,218.11 : 125,881.38 = 50,929.52 : x
  2. Step 2: Convert to fraction form
    91,218.11/125,881.38 = 50,929.52/x
  3. Step 3: Cross multiply
    91,218.11x = 125,881.38 × 50,929.52
  4. Step 4: Simplify right side
    91,218.11x = 6,411,078,260.34
  5. Step 5: Solve for x
    x = 6,411,078,260.34/91,218.11
  6. Step 6: Final answer
    x = 70,282.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.