Home / 51,012.24-70,397.28-28,351.68

Finding the Fourth Proportional to 51,012.24, 70,397.28 and 28,351.68

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Solution

The fourth proportional to 51,012.24, 70,397.28 and 28,351.68 is: 39,125.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,012.24 : 70,397.28 = 28,351.68 : x
  2. Step 2: Convert to fraction form
    51,012.24/70,397.28 = 28,351.68/x
  3. Step 3: Cross multiply
    51,012.24x = 70,397.28 × 28,351.68
  4. Step 4: Simplify right side
    51,012.24x = 1,995,881,155.43
  5. Step 5: Solve for x
    x = 1,995,881,155.43/51,012.24
  6. Step 6: Final answer
    x = 39,125.53

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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.