Home / 73,158.12-109,715.40-31,037.52

Finding the Fourth Proportional to 73,158.12, 109,715.40 and 31,037.52

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Solution

The fourth proportional to 73,158.12, 109,715.40 and 31,037.52 is: 46,547.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,158.12 : 109,715.40 = 31,037.52 : x
  2. Step 2: Convert to fraction form
    73,158.12/109,715.40 = 31,037.52/x
  3. Step 3: Cross multiply
    73,158.12x = 109,715.40 × 31,037.52
  4. Step 4: Simplify right side
    73,158.12x = 3,405,293,921.81
  5. Step 5: Solve for x
    x = 3,405,293,921.81/73,158.12
  6. Step 6: Final answer
    x = 46,547.04

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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.