Home / 85,502.24-128,247.27-26,331.74

Finding the Fourth Proportional to 85,502.24, 128,247.27 and 26,331.74

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Solution

The fourth proportional to 85,502.24, 128,247.27 and 26,331.74 is: 39,495.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,502.24 : 128,247.27 = 26,331.74 : x
  2. Step 2: Convert to fraction form
    85,502.24/128,247.27 = 26,331.74/x
  3. Step 3: Cross multiply
    85,502.24x = 128,247.27 × 26,331.74
  4. Step 4: Simplify right side
    85,502.24x = 3,376,973,128.11
  5. Step 5: Solve for x
    x = 3,376,973,128.11/85,502.24
  6. Step 6: Final answer
    x = 39,495.73

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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.