Home / 40,726.64-61,095.65-12,648.75

Finding the Fourth Proportional to 40,726.64, 61,095.65 and 12,648.75

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Solution

The fourth proportional to 40,726.64, 61,095.65 and 12,648.75 is: 18,974.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,726.64 : 61,095.65 = 12,648.75 : x
  2. Step 2: Convert to fraction form
    40,726.64/61,095.65 = 12,648.75/x
  3. Step 3: Cross multiply
    40,726.64x = 61,095.65 × 12,648.75
  4. Step 4: Simplify right side
    40,726.64x = 772,783,602.94
  5. Step 5: Solve for x
    x = 772,783,602.94/40,726.64
  6. Step 6: Final answer
    x = 18,974.89

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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.