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Finding the Fourth Proportional to 83,482.79, 115,210.96 and 49,511.39

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Solution

The fourth proportional to 83,482.79, 115,210.96 and 49,511.39 is: 68,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,482.79 : 115,210.96 = 49,511.39 : x
  2. Step 2: Convert to fraction form
    83,482.79/115,210.96 = 49,511.39/x
  3. Step 3: Cross multiply
    83,482.79x = 115,210.96 × 49,511.39
  4. Step 4: Simplify right side
    83,482.79x = 5,704,254,073.00
  5. Step 5: Solve for x
    x = 5,704,254,073.00/83,482.79
  6. Step 6: Final answer
    x = 68,328.51

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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.