Home / 72,304.23-99,778.86-40,473.12

Finding the Fourth Proportional to 72,304.23, 99,778.86 and 40,473.12

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Solution

The fourth proportional to 72,304.23, 99,778.86 and 40,473.12 is: 55,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,304.23 : 99,778.86 = 40,473.12 : x
  2. Step 2: Convert to fraction form
    72,304.23/99,778.86 = 40,473.12/x
  3. Step 3: Cross multiply
    72,304.23x = 99,778.86 × 40,473.12
  4. Step 4: Simplify right side
    72,304.23x = 4,038,361,774.24
  5. Step 5: Solve for x
    x = 4,038,361,774.24/72,304.23
  6. Step 6: Final answer
    x = 55,852.36

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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.