Home / 56,689.23-78,339.03-42,517.47

Finding the Fourth Proportional to 56,689.23, 78,339.03 and 42,517.47

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Solution

The fourth proportional to 56,689.23, 78,339.03 and 42,517.47 is: 58,755.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,689.23 : 78,339.03 = 42,517.47 : x
  2. Step 2: Convert to fraction form
    56,689.23/78,339.03 = 42,517.47/x
  3. Step 3: Cross multiply
    56,689.23x = 78,339.03 × 42,517.47
  4. Step 4: Simplify right side
    56,689.23x = 3,330,777,357.85
  5. Step 5: Solve for x
    x = 3,330,777,357.85/56,689.23
  6. Step 6: Final answer
    x = 58,755.03

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1.5x scale

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.