Home / 52,779.11-72,817.10-30,101.80

Finding the Fourth Proportional to 52,779.11, 72,817.10 and 30,101.80

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Solution

The fourth proportional to 52,779.11, 72,817.10 and 30,101.80 is: 41,530.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,779.11 : 72,817.10 = 30,101.80 : x
  2. Step 2: Convert to fraction form
    52,779.11/72,817.10 = 30,101.80/x
  3. Step 3: Cross multiply
    52,779.11x = 72,817.10 × 30,101.80
  4. Step 4: Simplify right side
    52,779.11x = 2,191,925,780.78
  5. Step 5: Solve for x
    x = 2,191,925,780.78/52,779.11
  6. Step 6: Final answer
    x = 41,530.18

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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.