Home / 42,083.64-63,114.59-12,494.78

Finding the Fourth Proportional to 42,083.64, 63,114.59 and 12,494.78

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Solution

The fourth proportional to 42,083.64, 63,114.59 and 12,494.78 is: 18,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,083.64 : 63,114.59 = 12,494.78 : x
  2. Step 2: Convert to fraction form
    42,083.64/63,114.59 = 12,494.78/x
  3. Step 3: Cross multiply
    42,083.64x = 63,114.59 × 12,494.78
  4. Step 4: Simplify right side
    42,083.64x = 788,602,916.84
  5. Step 5: Solve for x
    x = 788,602,916.84/42,083.64
  6. Step 6: Final answer
    x = 18,738.94

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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.