Home / 66,612.86-99,939.27-28,162.58

Finding the Fourth Proportional to 66,612.86, 99,939.27 and 28,162.58

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Solution

The fourth proportional to 66,612.86, 99,939.27 and 28,162.58 is: 42,252.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,612.86 : 99,939.27 = 28,162.58 : x
  2. Step 2: Convert to fraction form
    66,612.86/99,939.27 = 28,162.58/x
  3. Step 3: Cross multiply
    66,612.86x = 99,939.27 × 28,162.58
  4. Step 4: Simplify right side
    66,612.86x = 2,814,547,686.52
  5. Step 5: Solve for x
    x = 2,814,547,686.52/66,612.86
  6. Step 6: Final answer
    x = 42,252.32

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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.