Home / 77,132.16-115,675.52-34,987.86

Finding the Fourth Proportional to 77,132.16, 115,675.52 and 34,987.86

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Solution

The fourth proportional to 77,132.16, 115,675.52 and 34,987.86 is: 52,471.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,132.16 : 115,675.52 = 34,987.86 : x
  2. Step 2: Convert to fraction form
    77,132.16/115,675.52 = 34,987.86/x
  3. Step 3: Cross multiply
    77,132.16x = 115,675.52 × 34,987.86
  4. Step 4: Simplify right side
    77,132.16x = 4,047,238,899.19
  5. Step 5: Solve for x
    x = 4,047,238,899.19/77,132.16
  6. Step 6: Final answer
    x = 52,471.48

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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.