Home / 42,042.50-63,064.02-10,878.02

Finding the Fourth Proportional to 42,042.50, 63,064.02 and 10,878.02

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Solution

The fourth proportional to 42,042.50, 63,064.02 and 10,878.02 is: 16,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,042.50 : 63,064.02 = 10,878.02 : x
  2. Step 2: Convert to fraction form
    42,042.50/63,064.02 = 10,878.02/x
  3. Step 3: Cross multiply
    42,042.50x = 63,064.02 × 10,878.02
  4. Step 4: Simplify right side
    42,042.50x = 686,011,670.84
  5. Step 5: Solve for x
    x = 686,011,670.84/42,042.50
  6. Step 6: Final answer
    x = 16,317.10

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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.