Home / 85,542.46-128,302.74-35,613.24

Finding the Fourth Proportional to 85,542.46, 128,302.74 and 35,613.24

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Solution

The fourth proportional to 85,542.46, 128,302.74 and 35,613.24 is: 53,415.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,542.46 : 128,302.74 = 35,613.24 : x
  2. Step 2: Convert to fraction form
    85,542.46/128,302.74 = 35,613.24/x
  3. Step 3: Cross multiply
    85,542.46x = 128,302.74 × 35,613.24
  4. Step 4: Simplify right side
    85,542.46x = 4,569,276,272.28
  5. Step 5: Solve for x
    x = 4,569,276,272.28/85,542.46
  6. Step 6: Final answer
    x = 53,415.30

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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.