Home / 78,017.28-116,797.44-48,345.60

Finding the Fourth Proportional to 78,017.28, 116,797.44 and 48,345.60

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Solution

The fourth proportional to 78,017.28, 116,797.44 and 48,345.60 is: 72,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,017.28 : 116,797.44 = 48,345.60 : x
  2. Step 2: Convert to fraction form
    78,017.28/116,797.44 = 48,345.60/x
  3. Step 3: Cross multiply
    78,017.28x = 116,797.44 × 48,345.60
  4. Step 4: Simplify right side
    78,017.28x = 5,646,642,315.26
  5. Step 5: Solve for x
    x = 5,646,642,315.26/78,017.28
  6. Step 6: Final answer
    x = 72,376.82

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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.