Home / 74,829.79-103,239.06-47,987.10

Finding the Fourth Proportional to 74,829.79, 103,239.06 and 47,987.10

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Solution

The fourth proportional to 74,829.79, 103,239.06 and 47,987.10 is: 66,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,829.79 : 103,239.06 = 47,987.10 : x
  2. Step 2: Convert to fraction form
    74,829.79/103,239.06 = 47,987.10/x
  3. Step 3: Cross multiply
    74,829.79x = 103,239.06 × 47,987.10
  4. Step 4: Simplify right side
    74,829.79x = 4,954,142,916.17
  5. Step 5: Solve for x
    x = 4,954,142,916.17/74,829.79
  6. Step 6: Final answer
    x = 66,205.49

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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.