Home / 66,162.08-99,228.53-42,398.30

Finding the Fourth Proportional to 66,162.08, 99,228.53 and 42,398.30

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Solution

The fourth proportional to 66,162.08, 99,228.53 and 42,398.30 is: 63,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,162.08 : 99,228.53 = 42,398.30 : x
  2. Step 2: Convert to fraction form
    66,162.08/99,228.53 = 42,398.30/x
  3. Step 3: Cross multiply
    66,162.08x = 99,228.53 × 42,398.30
  4. Step 4: Simplify right side
    66,162.08x = 4,207,120,593.35
  5. Step 5: Solve for x
    x = 4,207,120,593.35/66,162.08
  6. Step 6: Final answer
    x = 63,588.10

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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.