Home / 51,421.17-77,144.06-18,148.70

Finding the Fourth Proportional to 51,421.17, 77,144.06 and 18,148.70

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Solution

The fourth proportional to 51,421.17, 77,144.06 and 18,148.70 is: 27,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,421.17 : 77,144.06 = 18,148.70 : x
  2. Step 2: Convert to fraction form
    51,421.17/77,144.06 = 18,148.70/x
  3. Step 3: Cross multiply
    51,421.17x = 77,144.06 × 18,148.70
  4. Step 4: Simplify right side
    51,421.17x = 1,400,063,925.26
  5. Step 5: Solve for x
    x = 1,400,063,925.26/51,421.17
  6. Step 6: Final answer
    x = 27,227.38

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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.