Home / 53,979.93-74,472.23-31,306.21

Finding the Fourth Proportional to 53,979.93, 74,472.23 and 31,306.21

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Solution

The fourth proportional to 53,979.93, 74,472.23 and 31,306.21 is: 43,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,979.93 : 74,472.23 = 31,306.21 : x
  2. Step 2: Convert to fraction form
    53,979.93/74,472.23 = 31,306.21/x
  3. Step 3: Cross multiply
    53,979.93x = 74,472.23 × 31,306.21
  4. Step 4: Simplify right side
    53,979.93x = 2,331,443,163.63
  5. Step 5: Solve for x
    x = 2,331,443,163.63/53,979.93
  6. Step 6: Final answer
    x = 43,190.93

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1.5x scale

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.