Home / 51,630.16-71,248.50-28,968.76

Finding the Fourth Proportional to 51,630.16, 71,248.50 and 28,968.76

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Solution

The fourth proportional to 51,630.16, 71,248.50 and 28,968.76 is: 39,976.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,630.16 : 71,248.50 = 28,968.76 : x
  2. Step 2: Convert to fraction form
    51,630.16/71,248.50 = 28,968.76/x
  3. Step 3: Cross multiply
    51,630.16x = 71,248.50 × 28,968.76
  4. Step 4: Simplify right side
    51,630.16x = 2,063,980,696.86
  5. Step 5: Solve for x
    x = 2,063,980,696.86/51,630.16
  6. Step 6: Final answer
    x = 39,976.26

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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.