Home / 53,143.56-79,729.11-15,702.12

Finding the Fourth Proportional to 53,143.56, 79,729.11 and 15,702.12

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Solution

The fourth proportional to 53,143.56, 79,729.11 and 15,702.12 is: 23,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,143.56 : 79,729.11 = 15,702.12 : x
  2. Step 2: Convert to fraction form
    53,143.56/79,729.11 = 15,702.12/x
  3. Step 3: Cross multiply
    53,143.56x = 79,729.11 × 15,702.12
  4. Step 4: Simplify right side
    53,143.56x = 1,251,916,052.71
  5. Step 5: Solve for x
    x = 1,251,916,052.71/53,143.56
  6. Step 6: Final answer
    x = 23,557.25

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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.