Home / 65,432.16-90,385.49-51,271.18

Finding the Fourth Proportional to 65,432.16, 90,385.49 and 51,271.18

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Solution

The fourth proportional to 65,432.16, 90,385.49 and 51,271.18 is: 70,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,432.16 : 90,385.49 = 51,271.18 : x
  2. Step 2: Convert to fraction form
    65,432.16/90,385.49 = 51,271.18/x
  3. Step 3: Cross multiply
    65,432.16x = 90,385.49 × 51,271.18
  4. Step 4: Simplify right side
    65,432.16x = 4,634,170,629.39
  5. Step 5: Solve for x
    x = 4,634,170,629.39/65,432.16
  6. Step 6: Final answer
    x = 70,824.05

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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.