Home / 85,317.57-127,995.03-26,157.86

Finding the Fourth Proportional to 85,317.57, 127,995.03 and 26,157.86

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Solution

The fourth proportional to 85,317.57, 127,995.03 and 26,157.86 is: 39,242.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,317.57 : 127,995.03 = 26,157.86 : x
  2. Step 2: Convert to fraction form
    85,317.57/127,995.03 = 26,157.86/x
  3. Step 3: Cross multiply
    85,317.57x = 127,995.03 × 26,157.86
  4. Step 4: Simplify right side
    85,317.57x = 3,348,075,435.46
  5. Step 5: Solve for x
    x = 3,348,075,435.46/85,317.57
  6. Step 6: Final answer
    x = 39,242.51

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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.