Home / 49,637.40-74,456.10-28,642.20

Finding the Fourth Proportional to 49,637.40, 74,456.10 and 28,642.20

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Solution

The fourth proportional to 49,637.40, 74,456.10 and 28,642.20 is: 42,963.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,637.40 : 74,456.10 = 28,642.20 : x
  2. Step 2: Convert to fraction form
    49,637.40/74,456.10 = 28,642.20/x
  3. Step 3: Cross multiply
    49,637.40x = 74,456.10 × 28,642.20
  4. Step 4: Simplify right side
    49,637.40x = 2,132,586,507.42
  5. Step 5: Solve for x
    x = 2,132,586,507.42/49,637.40
  6. Step 6: Final answer
    x = 42,963.30

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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.