Home / 74,156.58-102,341.70-42,327.54

Finding the Fourth Proportional to 74,156.58, 102,341.70 and 42,327.54

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Solution

The fourth proportional to 74,156.58, 102,341.70 and 42,327.54 is: 58,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,156.58 : 102,341.70 = 42,327.54 : x
  2. Step 2: Convert to fraction form
    74,156.58/102,341.70 = 42,327.54/x
  3. Step 3: Cross multiply
    74,156.58x = 102,341.70 × 42,327.54
  4. Step 4: Simplify right side
    74,156.58x = 4,331,872,400.42
  5. Step 5: Solve for x
    x = 4,331,872,400.42/74,156.58
  6. Step 6: Final answer
    x = 58,415.21

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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.