Home / 85,847.20-128,762.16-23,526.88

Finding the Fourth Proportional to 85,847.20, 128,762.16 and 23,526.88

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Solution

The fourth proportional to 85,847.20, 128,762.16 and 23,526.88 is: 35,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.20 : 128,762.16 = 23,526.88 : x
  2. Step 2: Convert to fraction form
    85,847.20/128,762.16 = 23,526.88/x
  3. Step 3: Cross multiply
    85,847.20x = 128,762.16 × 23,526.88
  4. Step 4: Simplify right side
    85,847.20x = 3,029,371,886.86
  5. Step 5: Solve for x
    x = 3,029,371,886.86/85,847.20
  6. Step 6: Final answer
    x = 35,287.95

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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.