Home / 42,043.25-63,065.11-10,878.50

Finding the Fourth Proportional to 42,043.25, 63,065.11 and 10,878.50

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Solution

The fourth proportional to 42,043.25, 63,065.11 and 10,878.50 is: 16,317.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,043.25 : 63,065.11 = 10,878.50 : x
  2. Step 2: Convert to fraction form
    42,043.25/63,065.11 = 10,878.50/x
  3. Step 3: Cross multiply
    42,043.25x = 63,065.11 × 10,878.50
  4. Step 4: Simplify right side
    42,043.25x = 686,054,038.68
  5. Step 5: Solve for x
    x = 686,054,038.68/42,043.25
  6. Step 6: Final answer
    x = 16,317.81

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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.