Home / 72,175.32-99,597.60-40,339.08

Finding the Fourth Proportional to 72,175.32, 99,597.60 and 40,339.08

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Solution

The fourth proportional to 72,175.32, 99,597.60 and 40,339.08 is: 55,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,175.32 : 99,597.60 = 40,339.08 : x
  2. Step 2: Convert to fraction form
    72,175.32/99,597.60 = 40,339.08/x
  3. Step 3: Cross multiply
    72,175.32x = 99,597.60 × 40,339.08
  4. Step 4: Simplify right side
    72,175.32x = 4,017,675,554.21
  5. Step 5: Solve for x
    x = 4,017,675,554.21/72,175.32
  6. Step 6: Final answer
    x = 55,665.50

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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.