Home / 64,979.24-89,672.08-38,122.20

Finding the Fourth Proportional to 64,979.24, 89,672.08 and 38,122.20

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Solution

The fourth proportional to 64,979.24, 89,672.08 and 38,122.20 is: 52,609.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,979.24 : 89,672.08 = 38,122.20 : x
  2. Step 2: Convert to fraction form
    64,979.24/89,672.08 = 38,122.20/x
  3. Step 3: Cross multiply
    64,979.24x = 89,672.08 × 38,122.20
  4. Step 4: Simplify right side
    64,979.24x = 3,418,496,968.18
  5. Step 5: Solve for x
    x = 3,418,496,968.18/64,979.24
  6. Step 6: Final answer
    x = 52,609.06

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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.