Home / 74,767.08-103,175.10-42,913.56

Finding the Fourth Proportional to 74,767.08, 103,175.10 and 42,913.56

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Solution

The fourth proportional to 74,767.08, 103,175.10 and 42,913.56 is: 59,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,767.08 : 103,175.10 = 42,913.56 : x
  2. Step 2: Convert to fraction form
    74,767.08/103,175.10 = 42,913.56/x
  3. Step 3: Cross multiply
    74,767.08x = 103,175.10 × 42,913.56
  4. Step 4: Simplify right side
    74,767.08x = 4,427,610,844.36
  5. Step 5: Solve for x
    x = 4,427,610,844.36/74,767.08
  6. Step 6: Final answer
    x = 59,218.72

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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.