Home / 63,307.83-87,382.08-39,420.39

Finding the Fourth Proportional to 63,307.83, 87,382.08 and 39,420.39

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Solution

The fourth proportional to 63,307.83, 87,382.08 and 39,420.39 is: 54,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,307.83 : 87,382.08 = 39,420.39 : x
  2. Step 2: Convert to fraction form
    63,307.83/87,382.08 = 39,420.39/x
  3. Step 3: Cross multiply
    63,307.83x = 87,382.08 × 39,420.39
  4. Step 4: Simplify right side
    63,307.83x = 3,444,635,672.61
  5. Step 5: Solve for x
    x = 3,444,635,672.61/63,307.83
  6. Step 6: Final answer
    x = 54,410.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.