Home / 64,275.30-88,689.38-40,385.07

Finding the Fourth Proportional to 64,275.30, 88,689.38 and 40,385.07

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Solution

The fourth proportional to 64,275.30, 88,689.38 and 40,385.07 is: 55,724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,275.30 : 88,689.38 = 40,385.07 : x
  2. Step 2: Convert to fraction form
    64,275.30/88,689.38 = 40,385.07/x
  3. Step 3: Cross multiply
    64,275.30x = 88,689.38 × 40,385.07
  4. Step 4: Simplify right side
    64,275.30x = 3,581,726,617.63
  5. Step 5: Solve for x
    x = 3,581,726,617.63/64,275.30
  6. Step 6: Final answer
    x = 55,724.77

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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.