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Finding the Fourth Proportional to 60,808.80, 91,018.80 and 43,312.80

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Solution

The fourth proportional to 60,808.80, 91,018.80 and 43,312.80 is: 64,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,808.80 : 91,018.80 = 43,312.80 : x
  2. Step 2: Convert to fraction form
    60,808.80/91,018.80 = 43,312.80/x
  3. Step 3: Cross multiply
    60,808.80x = 91,018.80 × 43,312.80
  4. Step 4: Simplify right side
    60,808.80x = 3,942,279,080.64
  5. Step 5: Solve for x
    x = 3,942,279,080.64/60,808.80
  6. Step 6: Final answer
    x = 64,830.73

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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.