Home / 72,770.11-100,389.56-52,595.03

Finding the Fourth Proportional to 72,770.11, 100,389.56 and 52,595.03

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Solution

The fourth proportional to 72,770.11, 100,389.56 and 52,595.03 is: 72,557.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,770.11 : 100,389.56 = 52,595.03 : x
  2. Step 2: Convert to fraction form
    72,770.11/100,389.56 = 52,595.03/x
  3. Step 3: Cross multiply
    72,770.11x = 100,389.56 × 52,595.03
  4. Step 4: Simplify right side
    72,770.11x = 5,279,991,907.89
  5. Step 5: Solve for x
    x = 5,279,991,907.89/72,770.11
  6. Step 6: Final answer
    x = 72,557.15

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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.