Home / 74,199.78-102,398.31-42,368.10

Finding the Fourth Proportional to 74,199.78, 102,398.31 and 42,368.10

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Solution

The fourth proportional to 74,199.78, 102,398.31 and 42,368.10 is: 58,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,199.78 : 102,398.31 = 42,368.10 : x
  2. Step 2: Convert to fraction form
    74,199.78/102,398.31 = 42,368.10/x
  3. Step 3: Cross multiply
    74,199.78x = 102,398.31 × 42,368.10
  4. Step 4: Simplify right side
    74,199.78x = 4,338,421,837.91
  5. Step 5: Solve for x
    x = 4,338,421,837.91/74,199.78
  6. Step 6: Final answer
    x = 58,469.47

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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.