Home / 42,879.90-64,319.88-23,167.74

Finding the Fourth Proportional to 42,879.90, 64,319.88 and 23,167.74

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Solution

The fourth proportional to 42,879.90, 64,319.88 and 23,167.74 is: 34,751.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,879.90 : 64,319.88 = 23,167.74 : x
  2. Step 2: Convert to fraction form
    42,879.90/64,319.88 = 23,167.74/x
  3. Step 3: Cross multiply
    42,879.90x = 64,319.88 × 23,167.74
  4. Step 4: Simplify right side
    42,879.90x = 1,490,146,256.67
  5. Step 5: Solve for x
    x = 1,490,146,256.67/42,879.90
  6. Step 6: Final answer
    x = 34,751.63

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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.