Home / 87,368.22-120,343.59-61,830.54

Finding the Fourth Proportional to 87,368.22, 120,343.59 and 61,830.54

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Solution

The fourth proportional to 87,368.22, 120,343.59 and 61,830.54 is: 85,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,368.22 : 120,343.59 = 61,830.54 : x
  2. Step 2: Convert to fraction form
    87,368.22/120,343.59 = 61,830.54/x
  3. Step 3: Cross multiply
    87,368.22x = 120,343.59 × 61,830.54
  4. Step 4: Simplify right side
    87,368.22x = 7,440,909,155.24
  5. Step 5: Solve for x
    x = 7,440,909,155.24/87,368.22
  6. Step 6: Final answer
    x = 85,167.23

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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.