Home / 74,701.74-103,130.59-49,585.58

Finding the Fourth Proportional to 74,701.74, 103,130.59 and 49,585.58

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Solution

The fourth proportional to 74,701.74, 103,130.59 and 49,585.58 is: 68,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.74 : 103,130.59 = 49,585.58 : x
  2. Step 2: Convert to fraction form
    74,701.74/103,130.59 = 49,585.58/x
  3. Step 3: Cross multiply
    74,701.74x = 103,130.59 × 49,585.58
  4. Step 4: Simplify right side
    74,701.74x = 5,113,790,120.89
  5. Step 5: Solve for x
    x = 5,113,790,120.89/74,701.74
  6. Step 6: Final answer
    x = 68,456.10

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1.5x scale

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.