Home / 72,125.55-99,537.93-40,294.62

Finding the Fourth Proportional to 72,125.55, 99,537.93 and 40,294.62

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Solution

The fourth proportional to 72,125.55, 99,537.93 and 40,294.62 is: 55,609.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,125.55 : 99,537.93 = 40,294.62 : x
  2. Step 2: Convert to fraction form
    72,125.55/99,537.93 = 40,294.62/x
  3. Step 3: Cross multiply
    72,125.55x = 99,537.93 × 40,294.62
  4. Step 4: Simplify right side
    72,125.55x = 4,010,843,064.94
  5. Step 5: Solve for x
    x = 4,010,843,064.94/72,125.55
  6. Step 6: Final answer
    x = 55,609.19

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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.