Home / 53,318.98-79,970.27-17,780.92

Finding the Fourth Proportional to 53,318.98, 79,970.27 and 17,780.92

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Solution

The fourth proportional to 53,318.98, 79,970.27 and 17,780.92 is: 26,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,318.98 : 79,970.27 = 17,780.92 : x
  2. Step 2: Convert to fraction form
    53,318.98/79,970.27 = 17,780.92/x
  3. Step 3: Cross multiply
    53,318.98x = 79,970.27 × 17,780.92
  4. Step 4: Simplify right side
    53,318.98x = 1,421,944,684.42
  5. Step 5: Solve for x
    x = 1,421,944,684.42/53,318.98
  6. Step 6: Final answer
    x = 26,668.64

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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.