Home / 74,086.12-102,237.79-42,255.55

Finding the Fourth Proportional to 74,086.12, 102,237.79 and 42,255.55

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Solution

The fourth proportional to 74,086.12, 102,237.79 and 42,255.55 is: 58,312.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,086.12 : 102,237.79 = 42,255.55 : x
  2. Step 2: Convert to fraction form
    74,086.12/102,237.79 = 42,255.55/x
  3. Step 3: Cross multiply
    74,086.12x = 102,237.79 × 42,255.55
  4. Step 4: Simplify right side
    74,086.12x = 4,320,114,047.23
  5. Step 5: Solve for x
    x = 4,320,114,047.23/74,086.12
  6. Step 6: Final answer
    x = 58,312.06

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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.