Home / 82,472.32-123,712.96-23,312.64

Finding the Fourth Proportional to 82,472.32, 123,712.96 and 23,312.64

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Solution

The fourth proportional to 82,472.32, 123,712.96 and 23,312.64 is: 34,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,472.32 : 123,712.96 = 23,312.64 : x
  2. Step 2: Convert to fraction form
    82,472.32/123,712.96 = 23,312.64/x
  3. Step 3: Cross multiply
    82,472.32x = 123,712.96 × 23,312.64
  4. Step 4: Simplify right side
    82,472.32x = 2,884,075,699.81
  5. Step 5: Solve for x
    x = 2,884,075,699.81/82,472.32
  6. Step 6: Final answer
    x = 34,970.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.