Home / 78,909.48-118,383.36-26,323.08

Finding the Fourth Proportional to 78,909.48, 118,383.36 and 26,323.08

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Solution

The fourth proportional to 78,909.48, 118,383.36 and 26,323.08 is: 39,491.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,909.48 : 118,383.36 = 26,323.08 : x
  2. Step 2: Convert to fraction form
    78,909.48/118,383.36 = 26,323.08/x
  3. Step 3: Cross multiply
    78,909.48x = 118,383.36 × 26,323.08
  4. Step 4: Simplify right side
    78,909.48x = 3,116,214,655.95
  5. Step 5: Solve for x
    x = 3,116,214,655.95/78,909.48
  6. Step 6: Final answer
    x = 39,491.00

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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.