Home / 85,373.46-128,079.23-26,215.11

Finding the Fourth Proportional to 85,373.46, 128,079.23 and 26,215.11

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Solution

The fourth proportional to 85,373.46, 128,079.23 and 26,215.11 is: 39,328.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,373.46 : 128,079.23 = 26,215.11 : x
  2. Step 2: Convert to fraction form
    85,373.46/128,079.23 = 26,215.11/x
  3. Step 3: Cross multiply
    85,373.46x = 128,079.23 × 26,215.11
  4. Step 4: Simplify right side
    85,373.46x = 3,357,610,972.09
  5. Step 5: Solve for x
    x = 3,357,610,972.09/85,373.46
  6. Step 6: Final answer
    x = 39,328.51

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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.