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Finding the Fourth Proportional to 48,689.99, 67,197.30 and 28,547.72

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Solution

The fourth proportional to 48,689.99, 67,197.30 and 28,547.72 is: 39,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,689.99 : 67,197.30 = 28,547.72 : x
  2. Step 2: Convert to fraction form
    48,689.99/67,197.30 = 28,547.72/x
  3. Step 3: Cross multiply
    48,689.99x = 67,197.30 × 28,547.72
  4. Step 4: Simplify right side
    48,689.99x = 1,918,329,705.16
  5. Step 5: Solve for x
    x = 1,918,329,705.16/48,689.99
  6. Step 6: Final answer
    x = 39,398.85

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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.