Home / 98,814.13-136,364.01-56,372.66

Finding the Fourth Proportional to 98,814.13, 136,364.01 and 56,372.66

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Solution

The fourth proportional to 98,814.13, 136,364.01 and 56,372.66 is: 77,794.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,814.13 : 136,364.01 = 56,372.66 : x
  2. Step 2: Convert to fraction form
    98,814.13/136,364.01 = 56,372.66/x
  3. Step 3: Cross multiply
    98,814.13x = 136,364.01 × 56,372.66
  4. Step 4: Simplify right side
    98,814.13x = 7,687,201,590.11
  5. Step 5: Solve for x
    x = 7,687,201,590.11/98,814.13
  6. Step 6: Final answer
    x = 77,794.56

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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.