Home / 63,189.81-87,219.36-39,302.28

Finding the Fourth Proportional to 63,189.81, 87,219.36 and 39,302.28

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Solution

The fourth proportional to 63,189.81, 87,219.36 and 39,302.28 is: 54,247.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,189.81 : 87,219.36 = 39,302.28 : x
  2. Step 2: Convert to fraction form
    63,189.81/87,219.36 = 39,302.28/x
  3. Step 3: Cross multiply
    63,189.81x = 87,219.36 × 39,302.28
  4. Step 4: Simplify right side
    63,189.81x = 3,427,919,708.14
  5. Step 5: Solve for x
    x = 3,427,919,708.14/63,189.81
  6. Step 6: Final answer
    x = 54,247.98

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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.