Home / 74,088.12-102,240.56-42,257.56

Finding the Fourth Proportional to 74,088.12, 102,240.56 and 42,257.56

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Solution

The fourth proportional to 74,088.12, 102,240.56 and 42,257.56 is: 58,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,088.12 : 102,240.56 = 42,257.56 : x
  2. Step 2: Convert to fraction form
    74,088.12/102,240.56 = 42,257.56/x
  3. Step 3: Cross multiply
    74,088.12x = 102,240.56 × 42,257.56
  4. Step 4: Simplify right side
    74,088.12x = 4,320,436,598.63
  5. Step 5: Solve for x
    x = 4,320,436,598.63/74,088.12
  6. Step 6: Final answer
    x = 58,314.84

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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.