Home / 78,589.14-117,905.45-26,035.53

Finding the Fourth Proportional to 78,589.14, 117,905.45 and 26,035.53

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Solution

The fourth proportional to 78,589.14, 117,905.45 and 26,035.53 is: 39,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,589.14 : 117,905.45 = 26,035.53 : x
  2. Step 2: Convert to fraction form
    78,589.14/117,905.45 = 26,035.53/x
  3. Step 3: Cross multiply
    78,589.14x = 117,905.45 × 26,035.53
  4. Step 4: Simplify right side
    78,589.14x = 3,069,730,750.46
  5. Step 5: Solve for x
    x = 3,069,730,750.46/78,589.14
  6. Step 6: Final answer
    x = 39,060.50

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1.5x scale

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.