Home / 74,930.30-112,438.65-28,216.70

Finding the Fourth Proportional to 74,930.30, 112,438.65 and 28,216.70

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Solution

The fourth proportional to 74,930.30, 112,438.65 and 28,216.70 is: 42,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,930.30 : 112,438.65 = 28,216.70 : x
  2. Step 2: Convert to fraction form
    74,930.30/112,438.65 = 28,216.70/x
  3. Step 3: Cross multiply
    74,930.30x = 112,438.65 × 28,216.70
  4. Step 4: Simplify right side
    74,930.30x = 3,172,647,655.46
  5. Step 5: Solve for x
    x = 3,172,647,655.46/74,930.30
  6. Step 6: Final answer
    x = 42,341.32

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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.