Home / 75,435.02-113,200.18-42,176.90

Finding the Fourth Proportional to 75,435.02, 113,200.18 and 42,176.90

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Solution

The fourth proportional to 75,435.02, 113,200.18 and 42,176.90 is: 63,291.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,435.02 : 113,200.18 = 42,176.90 : x
  2. Step 2: Convert to fraction form
    75,435.02/113,200.18 = 42,176.90/x
  3. Step 3: Cross multiply
    75,435.02x = 113,200.18 × 42,176.90
  4. Step 4: Simplify right side
    75,435.02x = 4,774,432,671.84
  5. Step 5: Solve for x
    x = 4,774,432,671.84/75,435.02
  6. Step 6: Final answer
    x = 63,291.99

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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.