Home / 74,316.48-102,603.24-51,648.72

Finding the Fourth Proportional to 74,316.48, 102,603.24 and 51,648.72

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Solution

The fourth proportional to 74,316.48, 102,603.24 and 51,648.72 is: 71,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,316.48 : 102,603.24 = 51,648.72 : x
  2. Step 2: Convert to fraction form
    74,316.48/102,603.24 = 51,648.72/x
  3. Step 3: Cross multiply
    74,316.48x = 102,603.24 × 51,648.72
  4. Step 4: Simplify right side
    74,316.48x = 5,299,326,013.85
  5. Step 5: Solve for x
    x = 5,299,326,013.85/74,316.48
  6. Step 6: Final answer
    x = 71,307.55

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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.