Home / 61,815.04-85,268.20-39,459.04

Finding the Fourth Proportional to 61,815.04, 85,268.20 and 39,459.04

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Solution

The fourth proportional to 61,815.04, 85,268.20 and 39,459.04 is: 54,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,815.04 : 85,268.20 = 39,459.04 : x
  2. Step 2: Convert to fraction form
    61,815.04/85,268.20 = 39,459.04/x
  3. Step 3: Cross multiply
    61,815.04x = 85,268.20 × 39,459.04
  4. Step 4: Simplify right side
    61,815.04x = 3,364,601,002.71
  5. Step 5: Solve for x
    x = 3,364,601,002.71/61,815.04
  6. Step 6: Final answer
    x = 54,430.14

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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.