Home / 66,616.70-99,875.63-40,315.19

Finding the Fourth Proportional to 66,616.70, 99,875.63 and 40,315.19

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Solution

The fourth proportional to 66,616.70, 99,875.63 and 40,315.19 is: 60,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,616.70 : 99,875.63 = 40,315.19 : x
  2. Step 2: Convert to fraction form
    66,616.70/99,875.63 = 40,315.19/x
  3. Step 3: Cross multiply
    66,616.70x = 99,875.63 × 40,315.19
  4. Step 4: Simplify right side
    66,616.70x = 4,026,504,601.23
  5. Step 5: Solve for x
    x = 4,026,504,601.23/66,616.70
  6. Step 6: Final answer
    x = 60,442.88

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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.