Home / 99,031.13-136,663.18-56,589.56

Finding the Fourth Proportional to 99,031.13, 136,663.18 and 56,589.56

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Solution

The fourth proportional to 99,031.13, 136,663.18 and 56,589.56 is: 78,093.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,031.13 : 136,663.18 = 56,589.56 : x
  2. Step 2: Convert to fraction form
    99,031.13/136,663.18 = 56,589.56/x
  3. Step 3: Cross multiply
    99,031.13x = 136,663.18 × 56,589.56
  4. Step 4: Simplify right side
    99,031.13x = 7,733,708,399.61
  5. Step 5: Solve for x
    x = 7,733,708,399.61/99,031.13
  6. Step 6: Final answer
    x = 78,093.71

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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.