Home / 74,915.36-103,358.40-49,434.38

Finding the Fourth Proportional to 74,915.36, 103,358.40 and 49,434.38

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Solution

The fourth proportional to 74,915.36, 103,358.40 and 49,434.38 is: 68,203.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,915.36 : 103,358.40 = 49,434.38 : x
  2. Step 2: Convert to fraction form
    74,915.36/103,358.40 = 49,434.38/x
  3. Step 3: Cross multiply
    74,915.36x = 103,358.40 × 49,434.38
  4. Step 4: Simplify right side
    74,915.36x = 5,109,458,421.79
  5. Step 5: Solve for x
    x = 5,109,458,421.79/74,915.36
  6. Step 6: Final answer
    x = 68,203.08

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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.