Home / 45,432.06-68,125.51-28,779.47

Finding the Fourth Proportional to 45,432.06, 68,125.51 and 28,779.47

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Solution

The fourth proportional to 45,432.06, 68,125.51 and 28,779.47 is: 43,154.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,432.06 : 68,125.51 = 28,779.47 : x
  2. Step 2: Convert to fraction form
    45,432.06/68,125.51 = 28,779.47/x
  3. Step 3: Cross multiply
    45,432.06x = 68,125.51 × 28,779.47
  4. Step 4: Simplify right side
    45,432.06x = 1,960,616,277.57
  5. Step 5: Solve for x
    x = 1,960,616,277.57/45,432.06
  6. Step 6: Final answer
    x = 43,154.91

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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.