Home / 78,398.10-108,082.26-53,868.16

Finding the Fourth Proportional to 78,398.10, 108,082.26 and 53,868.16

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Solution

The fourth proportional to 78,398.10, 108,082.26 and 53,868.16 is: 74,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,398.10 : 108,082.26 = 53,868.16 : x
  2. Step 2: Convert to fraction form
    78,398.10/108,082.26 = 53,868.16/x
  3. Step 3: Cross multiply
    78,398.10x = 108,082.26 × 53,868.16
  4. Step 4: Simplify right side
    78,398.10x = 5,822,192,474.84
  5. Step 5: Solve for x
    x = 5,822,192,474.84/78,398.10
  6. Step 6: Final answer
    x = 74,264.46

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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.