Home / 85,552.34-128,350.38-35,615.84

Finding the Fourth Proportional to 85,552.34, 128,350.38 and 35,615.84

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Solution

The fourth proportional to 85,552.34, 128,350.38 and 35,615.84 is: 53,432.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,552.34 : 128,350.38 = 35,615.84 : x
  2. Step 2: Convert to fraction form
    85,552.34/128,350.38 = 35,615.84/x
  3. Step 3: Cross multiply
    85,552.34x = 128,350.38 × 35,615.84
  4. Step 4: Simplify right side
    85,552.34x = 4,571,306,598.02
  5. Step 5: Solve for x
    x = 4,571,306,598.02/85,552.34
  6. Step 6: Final answer
    x = 53,432.86

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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.