Home / 75,685.06-113,461.71-31,284.10

Finding the Fourth Proportional to 75,685.06, 113,461.71 and 31,284.10

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Solution

The fourth proportional to 75,685.06, 113,461.71 and 31,284.10 is: 46,898.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,685.06 : 113,461.71 = 31,284.10 : x
  2. Step 2: Convert to fraction form
    75,685.06/113,461.71 = 31,284.10/x
  3. Step 3: Cross multiply
    75,685.06x = 113,461.71 × 31,284.10
  4. Step 4: Simplify right side
    75,685.06x = 3,549,547,481.81
  5. Step 5: Solve for x
    x = 3,549,547,481.81/75,685.06
  6. Step 6: Final answer
    x = 46,898.92

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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.