Home / 66,543.01-99,765.30-31,441.66

Finding the Fourth Proportional to 66,543.01, 99,765.30 and 31,441.66

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Solution

The fourth proportional to 66,543.01, 99,765.30 and 31,441.66 is: 47,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,543.01 : 99,765.30 = 31,441.66 : x
  2. Step 2: Convert to fraction form
    66,543.01/99,765.30 = 31,441.66/x
  3. Step 3: Cross multiply
    66,543.01x = 99,765.30 × 31,441.66
  4. Step 4: Simplify right side
    66,543.01x = 3,136,786,642.40
  5. Step 5: Solve for x
    x = 3,136,786,642.40/66,543.01
  6. Step 6: Final answer
    x = 47,139.24

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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.