Home / 90,412.80-124,777.06-50,139.20

Finding the Fourth Proportional to 90,412.80, 124,777.06 and 50,139.20

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Solution

The fourth proportional to 90,412.80, 124,777.06 and 50,139.20 is: 69,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,412.80 : 124,777.06 = 50,139.20 : x
  2. Step 2: Convert to fraction form
    90,412.80/124,777.06 = 50,139.20/x
  3. Step 3: Cross multiply
    90,412.80x = 124,777.06 × 50,139.20
  4. Step 4: Simplify right side
    90,412.80x = 6,256,221,966.75
  5. Step 5: Solve for x
    x = 6,256,221,966.75/90,412.80
  6. Step 6: Final answer
    x = 69,196.20

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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.