Home / 78,663.24-108,554.67-42,853.14

Finding the Fourth Proportional to 78,663.24, 108,554.67 and 42,853.14

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Solution

The fourth proportional to 78,663.24, 108,554.67 and 42,853.14 is: 59,137.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,663.24 : 108,554.67 = 42,853.14 : x
  2. Step 2: Convert to fraction form
    78,663.24/108,554.67 = 42,853.14/x
  3. Step 3: Cross multiply
    78,663.24x = 108,554.67 × 42,853.14
  4. Step 4: Simplify right side
    78,663.24x = 4,651,908,471.16
  5. Step 5: Solve for x
    x = 4,651,908,471.16/78,663.24
  6. Step 6: Final answer
    x = 59,137.01

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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.