Home / 78,355.02-117,507.69-25,752.30

Finding the Fourth Proportional to 78,355.02, 117,507.69 and 25,752.30

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Solution

The fourth proportional to 78,355.02, 117,507.69 and 25,752.30 is: 38,620.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,355.02 : 117,507.69 = 25,752.30 : x
  2. Step 2: Convert to fraction form
    78,355.02/117,507.69 = 25,752.30/x
  3. Step 3: Cross multiply
    78,355.02x = 117,507.69 × 25,752.30
  4. Step 4: Simplify right side
    78,355.02x = 3,026,093,285.19
  5. Step 5: Solve for x
    x = 3,026,093,285.19/78,355.02
  6. Step 6: Final answer
    x = 38,620.29

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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.