Home / 78,065.34-117,116.64-25,474.92

Finding the Fourth Proportional to 78,065.34, 117,116.64 and 25,474.92

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Solution

The fourth proportional to 78,065.34, 117,116.64 and 25,474.92 is: 38,218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,065.34 : 117,116.64 = 25,474.92 : x
  2. Step 2: Convert to fraction form
    78,065.34/117,116.64 = 25,474.92/x
  3. Step 3: Cross multiply
    78,065.34x = 117,116.64 × 25,474.92
  4. Step 4: Simplify right side
    78,065.34x = 2,983,537,034.67
  5. Step 5: Solve for x
    x = 2,983,537,034.67/78,065.34
  6. Step 6: Final answer
    x = 38,218.46

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1.5x scale

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.