Home / 51,239.13-70,709.85-28,578.15

Finding the Fourth Proportional to 51,239.13, 70,709.85 and 28,578.15

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Solution

The fourth proportional to 51,239.13, 70,709.85 and 28,578.15 is: 39,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,239.13 : 70,709.85 = 28,578.15 : x
  2. Step 2: Convert to fraction form
    51,239.13/70,709.85 = 28,578.15/x
  3. Step 3: Cross multiply
    51,239.13x = 70,709.85 × 28,578.15
  4. Step 4: Simplify right side
    51,239.13x = 2,020,756,699.78
  5. Step 5: Solve for x
    x = 2,020,756,699.78/51,239.13
  6. Step 6: Final answer
    x = 39,437.76

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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.