Home / 55,578.05-76,690.56-31,703.30

Finding the Fourth Proportional to 55,578.05, 76,690.56 and 31,703.30

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Solution

The fourth proportional to 55,578.05, 76,690.56 and 31,703.30 is: 43,746.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,578.05 : 76,690.56 = 31,703.30 : x
  2. Step 2: Convert to fraction form
    55,578.05/76,690.56 = 31,703.30/x
  3. Step 3: Cross multiply
    55,578.05x = 76,690.56 × 31,703.30
  4. Step 4: Simplify right side
    55,578.05x = 2,431,343,718.38
  5. Step 5: Solve for x
    x = 2,431,343,718.38/55,578.05
  6. Step 6: Final answer
    x = 43,746.48

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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.