Home / 75,085.32-103,695.30-64,965.18

Finding the Fourth Proportional to 75,085.32, 103,695.30 and 64,965.18

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Solution

The fourth proportional to 75,085.32, 103,695.30 and 64,965.18 is: 89,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,085.32 : 103,695.30 = 64,965.18 : x
  2. Step 2: Convert to fraction form
    75,085.32/103,695.30 = 64,965.18/x
  3. Step 3: Cross multiply
    75,085.32x = 103,695.30 × 64,965.18
  4. Step 4: Simplify right side
    75,085.32x = 6,736,583,829.65
  5. Step 5: Solve for x
    x = 6,736,583,829.65/75,085.32
  6. Step 6: Final answer
    x = 89,719.05

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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.