Home / 65,350.44-90,157.50-42,681.72

Finding the Fourth Proportional to 65,350.44, 90,157.50 and 42,681.72

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Solution

The fourth proportional to 65,350.44, 90,157.50 and 42,681.72 is: 58,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,350.44 : 90,157.50 = 42,681.72 : x
  2. Step 2: Convert to fraction form
    65,350.44/90,157.50 = 42,681.72/x
  3. Step 3: Cross multiply
    65,350.44x = 90,157.50 × 42,681.72
  4. Step 4: Simplify right side
    65,350.44x = 3,848,077,170.90
  5. Step 5: Solve for x
    x = 3,848,077,170.90/65,350.44
  6. Step 6: Final answer
    x = 58,883.72

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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.