Home / 78,953.13-118,452.78-26,399.52

Finding the Fourth Proportional to 78,953.13, 118,452.78 and 26,399.52

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Solution

The fourth proportional to 78,953.13, 118,452.78 and 26,399.52 is: 39,607.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,953.13 : 118,452.78 = 26,399.52 : x
  2. Step 2: Convert to fraction form
    78,953.13/118,452.78 = 26,399.52/x
  3. Step 3: Cross multiply
    78,953.13x = 118,452.78 × 26,399.52
  4. Step 4: Simplify right side
    78,953.13x = 3,127,096,534.67
  5. Step 5: Solve for x
    x = 3,127,096,534.67/78,953.13
  6. Step 6: Final answer
    x = 39,607.00

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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.