Home / 48,492.72-66,909.92-28,345.70

Finding the Fourth Proportional to 48,492.72, 66,909.92 and 28,345.70

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Solution

The fourth proportional to 48,492.72, 66,909.92 and 28,345.70 is: 39,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,492.72 : 66,909.92 = 28,345.70 : x
  2. Step 2: Convert to fraction form
    48,492.72/66,909.92 = 28,345.70/x
  3. Step 3: Cross multiply
    48,492.72x = 66,909.92 × 28,345.70
  4. Step 4: Simplify right side
    48,492.72x = 1,896,608,831.10
  5. Step 5: Solve for x
    x = 1,896,608,831.10/48,492.72
  6. Step 6: Final answer
    x = 39,111.21

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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.