Home / 57,042.24-78,715.19-31,547.11

Finding the Fourth Proportional to 57,042.24, 78,715.19 and 31,547.11

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Solution

The fourth proportional to 57,042.24, 78,715.19 and 31,547.11 is: 43,533.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,042.24 : 78,715.19 = 31,547.11 : x
  2. Step 2: Convert to fraction form
    57,042.24/78,715.19 = 31,547.11/x
  3. Step 3: Cross multiply
    57,042.24x = 78,715.19 × 31,547.11
  4. Step 4: Simplify right side
    57,042.24x = 2,483,236,599.87
  5. Step 5: Solve for x
    x = 2,483,236,599.87/57,042.24
  6. Step 6: Final answer
    x = 43,533.30

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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.