Home / 145,209.09-217,779.08-40,036.53

Finding the Fourth Proportional to 145,209.09, 217,779.08 and 40,036.53

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Solution

The fourth proportional to 145,209.09, 217,779.08 and 40,036.53 is: 60,045.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,209.09 : 217,779.08 = 40,036.53 : x
  2. Step 2: Convert to fraction form
    145,209.09/217,779.08 = 40,036.53/x
  3. Step 3: Cross multiply
    145,209.09x = 217,779.08 × 40,036.53
  4. Step 4: Simplify right side
    145,209.09x = 8,719,118,469.61
  5. Step 5: Solve for x
    x = 8,719,118,469.61/145,209.09
  6. Step 6: Final answer
    x = 60,045.27

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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.