Home / 53,530.40-80,276.70-18,461.90

Finding the Fourth Proportional to 53,530.40, 80,276.70 and 18,461.90

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Solution

The fourth proportional to 53,530.40, 80,276.70 and 18,461.90 is: 27,686.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,530.40 : 80,276.70 = 18,461.90 : x
  2. Step 2: Convert to fraction form
    53,530.40/80,276.70 = 18,461.90/x
  3. Step 3: Cross multiply
    53,530.40x = 80,276.70 × 18,461.90
  4. Step 4: Simplify right side
    53,530.40x = 1,482,060,407.73
  5. Step 5: Solve for x
    x = 1,482,060,407.73/53,530.40
  6. Step 6: Final answer
    x = 27,686.33

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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.