Home / 85,312.32-127,993.07-26,156.72

Finding the Fourth Proportional to 85,312.32, 127,993.07 and 26,156.72

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Solution

The fourth proportional to 85,312.32, 127,993.07 and 26,156.72 is: 39,242.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,312.32 : 127,993.07 = 26,156.72 : x
  2. Step 2: Convert to fraction form
    85,312.32/127,993.07 = 26,156.72/x
  3. Step 3: Cross multiply
    85,312.32x = 127,993.07 × 26,156.72
  4. Step 4: Simplify right side
    85,312.32x = 3,347,878,319.36
  5. Step 5: Solve for x
    x = 3,347,878,319.36/85,312.32
  6. Step 6: Final answer
    x = 39,242.61

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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.