Home / 74,775.90-103,181.31-42,946.85

Finding the Fourth Proportional to 74,775.90, 103,181.31 and 42,946.85

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Solution

The fourth proportional to 74,775.90, 103,181.31 and 42,946.85 is: 59,261.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,775.90 : 103,181.31 = 42,946.85 : x
  2. Step 2: Convert to fraction form
    74,775.90/103,181.31 = 42,946.85/x
  3. Step 3: Cross multiply
    74,775.90x = 103,181.31 × 42,946.85
  4. Step 4: Simplify right side
    74,775.90x = 4,431,312,243.37
  5. Step 5: Solve for x
    x = 4,431,312,243.37/74,775.90
  6. Step 6: Final answer
    x = 59,261.24

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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.