Home / 55,920.76-77,170.52-30,770.26

Finding the Fourth Proportional to 55,920.76, 77,170.52 and 30,770.26

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Solution

The fourth proportional to 55,920.76, 77,170.52 and 30,770.26 is: 42,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,920.76 : 77,170.52 = 30,770.26 : x
  2. Step 2: Convert to fraction form
    55,920.76/77,170.52 = 30,770.26/x
  3. Step 3: Cross multiply
    55,920.76x = 77,170.52 × 30,770.26
  4. Step 4: Simplify right side
    55,920.76x = 2,374,556,964.74
  5. Step 5: Solve for x
    x = 2,374,556,964.74/55,920.76
  6. Step 6: Final answer
    x = 42,462.89

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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.