Home / 75,328.02-112,992.72-19,168.20

Finding the Fourth Proportional to 75,328.02, 112,992.72 and 19,168.20

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Solution

The fourth proportional to 75,328.02, 112,992.72 and 19,168.20 is: 28,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,328.02 : 112,992.72 = 19,168.20 : x
  2. Step 2: Convert to fraction form
    75,328.02/112,992.72 = 19,168.20/x
  3. Step 3: Cross multiply
    75,328.02x = 112,992.72 × 19,168.20
  4. Step 4: Simplify right side
    75,328.02x = 2,165,867,055.50
  5. Step 5: Solve for x
    x = 2,165,867,055.50/75,328.02
  6. Step 6: Final answer
    x = 28,752.48

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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.