Home / 75,641.31-113,509.35-42,382.44

Finding the Fourth Proportional to 75,641.31, 113,509.35 and 42,382.44

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Solution

The fourth proportional to 75,641.31, 113,509.35 and 42,382.44 is: 63,600.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,641.31 : 113,509.35 = 42,382.44 : x
  2. Step 2: Convert to fraction form
    75,641.31/113,509.35 = 42,382.44/x
  3. Step 3: Cross multiply
    75,641.31x = 113,509.35 × 42,382.44
  4. Step 4: Simplify right side
    75,641.31x = 4,810,803,215.81
  5. Step 5: Solve for x
    x = 4,810,803,215.81/75,641.31
  6. Step 6: Final answer
    x = 63,600.21

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1.5x scale

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.