Home / 85,357.32-128,031.14-26,192.84

Finding the Fourth Proportional to 85,357.32, 128,031.14 and 26,192.84

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Solution

The fourth proportional to 85,357.32, 128,031.14 and 26,192.84 is: 39,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,357.32 : 128,031.14 = 26,192.84 : x
  2. Step 2: Convert to fraction form
    85,357.32/128,031.14 = 26,192.84/x
  3. Step 3: Cross multiply
    85,357.32x = 128,031.14 × 26,192.84
  4. Step 4: Simplify right side
    85,357.32x = 3,353,499,165.04
  5. Step 5: Solve for x
    x = 3,353,499,165.04/85,357.32
  6. Step 6: Final answer
    x = 39,287.77

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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.