Home / 55,679.43-76,734.60-39,547.47

Finding the Fourth Proportional to 55,679.43, 76,734.60 and 39,547.47

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Solution

The fourth proportional to 55,679.43, 76,734.60 and 39,547.47 is: 54,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,679.43 : 76,734.60 = 39,547.47 : x
  2. Step 2: Convert to fraction form
    55,679.43/76,734.60 = 39,547.47/x
  3. Step 3: Cross multiply
    55,679.43x = 76,734.60 × 39,547.47
  4. Step 4: Simplify right side
    55,679.43x = 3,034,659,291.46
  5. Step 5: Solve for x
    x = 3,034,659,291.46/55,679.43
  6. Step 6: Final answer
    x = 54,502.34

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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.