Home / 94,779.12-142,121.16-31,577.04

Finding the Fourth Proportional to 94,779.12, 142,121.16 and 31,577.04

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Solution

The fourth proportional to 94,779.12, 142,121.16 and 31,577.04 is: 47,349.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,779.12 : 142,121.16 = 31,577.04 : x
  2. Step 2: Convert to fraction form
    94,779.12/142,121.16 = 31,577.04/x
  3. Step 3: Cross multiply
    94,779.12x = 142,121.16 × 31,577.04
  4. Step 4: Simplify right side
    94,779.12x = 4,487,765,554.17
  5. Step 5: Solve for x
    x = 4,487,765,554.17/94,779.12
  6. Step 6: Final answer
    x = 47,349.73

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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.