Home / 51,990.45-71,747.40-28,117.59

Finding the Fourth Proportional to 51,990.45, 71,747.40 and 28,117.59

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Solution

The fourth proportional to 51,990.45, 71,747.40 and 28,117.59 is: 38,802.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,990.45 : 71,747.40 = 28,117.59 : x
  2. Step 2: Convert to fraction form
    51,990.45/71,747.40 = 28,117.59/x
  3. Step 3: Cross multiply
    51,990.45x = 71,747.40 × 28,117.59
  4. Step 4: Simplify right side
    51,990.45x = 2,017,363,976.77
  5. Step 5: Solve for x
    x = 2,017,363,976.77/51,990.45
  6. Step 6: Final answer
    x = 38,802.59

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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.