Home / 72,462.85-99,998.58-40,631.06

Finding the Fourth Proportional to 72,462.85, 99,998.58 and 40,631.06

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Solution

The fourth proportional to 72,462.85, 99,998.58 and 40,631.06 is: 56,070.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,462.85 : 99,998.58 = 40,631.06 : x
  2. Step 2: Convert to fraction form
    72,462.85/99,998.58 = 40,631.06/x
  3. Step 3: Cross multiply
    72,462.85x = 99,998.58 × 40,631.06
  4. Step 4: Simplify right side
    72,462.85x = 4,063,048,706.26
  5. Step 5: Solve for x
    x = 4,063,048,706.26/72,462.85
  6. Step 6: Final answer
    x = 56,070.78

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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.