Home / 74,890.56-112,347.36-28,146.72

Finding the Fourth Proportional to 74,890.56, 112,347.36 and 28,146.72

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Solution

The fourth proportional to 74,890.56, 112,347.36 and 28,146.72 is: 42,224.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,890.56 : 112,347.36 = 28,146.72 : x
  2. Step 2: Convert to fraction form
    74,890.56/112,347.36 = 28,146.72/x
  3. Step 3: Cross multiply
    74,890.56x = 112,347.36 × 28,146.72
  4. Step 4: Simplify right side
    74,890.56x = 3,162,209,684.66
  5. Step 5: Solve for x
    x = 3,162,209,684.66/74,890.56
  6. Step 6: Final answer
    x = 42,224.41

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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.