Home / 85,767.04-128,659.20-23,438.08

Finding the Fourth Proportional to 85,767.04, 128,659.20 and 23,438.08

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Solution

The fourth proportional to 85,767.04, 128,659.20 and 23,438.08 is: 35,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,767.04 : 128,659.20 = 23,438.08 : x
  2. Step 2: Convert to fraction form
    85,767.04/128,659.20 = 23,438.08/x
  3. Step 3: Cross multiply
    85,767.04x = 128,659.20 × 23,438.08
  4. Step 4: Simplify right side
    85,767.04x = 3,015,524,622.34
  5. Step 5: Solve for x
    x = 3,015,524,622.34/85,767.04
  6. Step 6: Final answer
    x = 35,159.48

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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.