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Finding the Fourth Proportional to 85,341.68, 128,079.48 and 59,230.16

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Solution

The fourth proportional to 85,341.68, 128,079.48 and 59,230.16 is: 88,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,341.68 : 128,079.48 = 59,230.16 : x
  2. Step 2: Convert to fraction form
    85,341.68/128,079.48 = 59,230.16/x
  3. Step 3: Cross multiply
    85,341.68x = 128,079.48 × 59,230.16
  4. Step 4: Simplify right side
    85,341.68x = 7,586,168,093.12
  5. Step 5: Solve for x
    x = 7,586,168,093.12/85,341.68
  6. Step 6: Final answer
    x = 88,891.71

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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.