Home / 75,711.24-113,580.18-31,313.10

Finding the Fourth Proportional to 75,711.24, 113,580.18 and 31,313.10

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Solution

The fourth proportional to 75,711.24, 113,580.18 and 31,313.10 is: 46,975.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,711.24 : 113,580.18 = 31,313.10 : x
  2. Step 2: Convert to fraction form
    75,711.24/113,580.18 = 31,313.10/x
  3. Step 3: Cross multiply
    75,711.24x = 113,580.18 × 31,313.10
  4. Step 4: Simplify right side
    75,711.24x = 3,556,547,534.36
  5. Step 5: Solve for x
    x = 3,556,547,534.36/75,711.24
  6. Step 6: Final answer
    x = 46,975.16

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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.