Home / 91,036.68-125,631.14-50,753

Finding the Fourth Proportional to 91,036.68, 125,631.14 and 50,753

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Solution

The fourth proportional to 91,036.68, 125,631.14 and 50,753 is: 70,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,036.68 : 125,631.14 = 50,753 : x
  2. Step 2: Convert to fraction form
    91,036.68/125,631.14 = 50,753/x
  3. Step 3: Cross multiply
    91,036.68x = 125,631.14 × 50,753
  4. Step 4: Simplify right side
    91,036.68x = 6,376,157,248.42
  5. Step 5: Solve for x
    x = 6,376,157,248.42/91,036.68
  6. Step 6: Final answer
    x = 70,039.43

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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.