Home / 85,549.22-128,237.72-35,656.94

Finding the Fourth Proportional to 85,549.22, 128,237.72 and 35,656.94

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Solution

The fourth proportional to 85,549.22, 128,237.72 and 35,656.94 is: 53,449.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,549.22 : 128,237.72 = 35,656.94 : x
  2. Step 2: Convert to fraction form
    85,549.22/128,237.72 = 35,656.94/x
  3. Step 3: Cross multiply
    85,549.22x = 128,237.72 × 35,656.94
  4. Step 4: Simplify right side
    85,549.22x = 4,572,563,868.30
  5. Step 5: Solve for x
    x = 4,572,563,868.30/85,549.22
  6. Step 6: Final answer
    x = 53,449.51

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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.