Home / 77,653.32-116,160.30-71,031.24

Finding the Fourth Proportional to 77,653.32, 116,160.30 and 71,031.24

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Solution

The fourth proportional to 77,653.32, 116,160.30 and 71,031.24 is: 106,254.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,653.32 : 116,160.30 = 71,031.24 : x
  2. Step 2: Convert to fraction form
    77,653.32/116,160.30 = 71,031.24/x
  3. Step 3: Cross multiply
    77,653.32x = 116,160.30 × 71,031.24
  4. Step 4: Simplify right side
    77,653.32x = 8,251,010,147.77
  5. Step 5: Solve for x
    x = 8,251,010,147.77/77,653.32
  6. Step 6: Final answer
    x = 106,254.44

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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.