Home / 55,781.04-76,979.64-31,907.76

Finding the Fourth Proportional to 55,781.04, 76,979.64 and 31,907.76

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Solution

The fourth proportional to 55,781.04, 76,979.64 and 31,907.76 is: 44,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,781.04 : 76,979.64 = 31,907.76 : x
  2. Step 2: Convert to fraction form
    55,781.04/76,979.64 = 31,907.76/x
  3. Step 3: Cross multiply
    55,781.04x = 76,979.64 × 31,907.76
  4. Step 4: Simplify right side
    55,781.04x = 2,456,247,878.01
  5. Step 5: Solve for x
    x = 2,456,247,878.01/55,781.04
  6. Step 6: Final answer
    x = 44,033.74

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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.