Home / 81,275.99-112,200.02-54,097.30

Finding the Fourth Proportional to 81,275.99, 112,200.02 and 54,097.30

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Solution

The fourth proportional to 81,275.99, 112,200.02 and 54,097.30 is: 74,680.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,275.99 : 112,200.02 = 54,097.30 : x
  2. Step 2: Convert to fraction form
    81,275.99/112,200.02 = 54,097.30/x
  3. Step 3: Cross multiply
    81,275.99x = 112,200.02 × 54,097.30
  4. Step 4: Simplify right side
    81,275.99x = 6,069,718,478.72
  5. Step 5: Solve for x
    x = 6,069,718,478.72/81,275.99
  6. Step 6: Final answer
    x = 74,680.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.