Home / 53,141.95-79,721.52-15,705.78

Finding the Fourth Proportional to 53,141.95, 79,721.52 and 15,705.78

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Solution

The fourth proportional to 53,141.95, 79,721.52 and 15,705.78 is: 23,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,141.95 : 79,721.52 = 15,705.78 : x
  2. Step 2: Convert to fraction form
    53,141.95/79,721.52 = 15,705.78/x
  3. Step 3: Cross multiply
    53,141.95x = 79,721.52 × 15,705.78
  4. Step 4: Simplify right side
    53,141.95x = 1,252,088,654.39
  5. Step 5: Solve for x
    x = 1,252,088,654.39/53,141.95
  6. Step 6: Final answer
    x = 23,561.21

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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.