Home / 74,681.60-112,010.28-30,306.56

Finding the Fourth Proportional to 74,681.60, 112,010.28 and 30,306.56

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Solution

The fourth proportional to 74,681.60, 112,010.28 and 30,306.56 is: 45,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,681.60 : 112,010.28 = 30,306.56 : x
  2. Step 2: Convert to fraction form
    74,681.60/112,010.28 = 30,306.56/x
  3. Step 3: Cross multiply
    74,681.60x = 112,010.28 × 30,306.56
  4. Step 4: Simplify right side
    74,681.60x = 3,394,646,271.44
  5. Step 5: Solve for x
    x = 3,394,646,271.44/74,681.60
  6. Step 6: Final answer
    x = 45,454.92

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1.5x scale

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.