Home / 78,375.02-117,562.87-19,210.74

Finding the Fourth Proportional to 78,375.02, 117,562.87 and 19,210.74

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Solution

The fourth proportional to 78,375.02, 117,562.87 and 19,210.74 is: 28,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,375.02 : 117,562.87 = 19,210.74 : x
  2. Step 2: Convert to fraction form
    78,375.02/117,562.87 = 19,210.74/x
  3. Step 3: Cross multiply
    78,375.02x = 117,562.87 × 19,210.74
  4. Step 4: Simplify right side
    78,375.02x = 2,258,470,250.28
  5. Step 5: Solve for x
    x = 2,258,470,250.28/78,375.02
  6. Step 6: Final answer
    x = 28,816.20

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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.