Home / 57,113.28-78,813.65-31,271.36

Finding the Fourth Proportional to 57,113.28, 78,813.65 and 31,271.36

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Solution

The fourth proportional to 57,113.28, 78,813.65 and 31,271.36 is: 43,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.28 : 78,813.65 = 31,271.36 : x
  2. Step 2: Convert to fraction form
    57,113.28/78,813.65 = 31,271.36/x
  3. Step 3: Cross multiply
    57,113.28x = 78,813.65 × 31,271.36
  4. Step 4: Simplify right side
    57,113.28x = 2,464,609,471.64
  5. Step 5: Solve for x
    x = 2,464,609,471.64/57,113.28
  6. Step 6: Final answer
    x = 43,153.00

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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.