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Finding the Fourth Proportional to 85,090.56, 117,423.30 and 53,277

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Solution

The fourth proportional to 85,090.56, 117,423.30 and 53,277 is: 73,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,090.56 : 117,423.30 = 53,277 : x
  2. Step 2: Convert to fraction form
    85,090.56/117,423.30 = 53,277/x
  3. Step 3: Cross multiply
    85,090.56x = 117,423.30 × 53,277
  4. Step 4: Simplify right side
    85,090.56x = 6,255,961,154.10
  5. Step 5: Solve for x
    x = 6,255,961,154.10/85,090.56
  6. Step 6: Final answer
    x = 73,521.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.