Home / 77,842.32-116,643.96-52,447.20

Finding the Fourth Proportional to 77,842.32, 116,643.96 and 52,447.20

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Solution

The fourth proportional to 77,842.32, 116,643.96 and 52,447.20 is: 78,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,842.32 : 116,643.96 = 52,447.20 : x
  2. Step 2: Convert to fraction form
    77,842.32/116,643.96 = 52,447.20/x
  3. Step 3: Cross multiply
    77,842.32x = 116,643.96 × 52,447.20
  4. Step 4: Simplify right side
    77,842.32x = 6,117,649,098.91
  5. Step 5: Solve for x
    x = 6,117,649,098.91/77,842.32
  6. Step 6: Final answer
    x = 78,590.27

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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.