Home / 69,875.42-96,423.21-39,661.34

Finding the Fourth Proportional to 69,875.42, 96,423.21 and 39,661.34

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Solution

The fourth proportional to 69,875.42, 96,423.21 and 39,661.34 is: 54,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,875.42 : 96,423.21 = 39,661.34 : x
  2. Step 2: Convert to fraction form
    69,875.42/96,423.21 = 39,661.34/x
  3. Step 3: Cross multiply
    69,875.42x = 96,423.21 × 39,661.34
  4. Step 4: Simplify right side
    69,875.42x = 3,824,273,233.59
  5. Step 5: Solve for x
    x = 3,824,273,233.59/69,875.42
  6. Step 6: Final answer
    x = 54,729.88

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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.