Home / 42,368.31-63,552.83-10,778.40

Finding the Fourth Proportional to 42,368.31, 63,552.83 and 10,778.40

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Solution

The fourth proportional to 42,368.31, 63,552.83 and 10,778.40 is: 16,167.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.31 : 63,552.83 = 10,778.40 : x
  2. Step 2: Convert to fraction form
    42,368.31/63,552.83 = 10,778.40/x
  3. Step 3: Cross multiply
    42,368.31x = 63,552.83 × 10,778.40
  4. Step 4: Simplify right side
    42,368.31x = 684,997,795.93
  5. Step 5: Solve for x
    x = 684,997,795.93/42,368.31
  6. Step 6: Final answer
    x = 16,167.69

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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.