Home / 72,172.64-99,597.96-40,341.53

Finding the Fourth Proportional to 72,172.64, 99,597.96 and 40,341.53

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Solution

The fourth proportional to 72,172.64, 99,597.96 and 40,341.53 is: 55,671.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,172.64 : 99,597.96 = 40,341.53 : x
  2. Step 2: Convert to fraction form
    72,172.64/99,597.96 = 40,341.53/x
  3. Step 3: Cross multiply
    72,172.64x = 99,597.96 × 40,341.53
  4. Step 4: Simplify right side
    72,172.64x = 4,017,934,091.28
  5. Step 5: Solve for x
    x = 4,017,934,091.28/72,172.64
  6. Step 6: Final answer
    x = 55,671.15

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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.