Home / 74,837.71-112,159.36-30,412.75

Finding the Fourth Proportional to 74,837.71, 112,159.36 and 30,412.75

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Solution

The fourth proportional to 74,837.71, 112,159.36 and 30,412.75 is: 45,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,837.71 : 112,159.36 = 30,412.75 : x
  2. Step 2: Convert to fraction form
    74,837.71/112,159.36 = 30,412.75/x
  3. Step 3: Cross multiply
    74,837.71x = 112,159.36 × 30,412.75
  4. Step 4: Simplify right side
    74,837.71x = 3,411,074,575.84
  5. Step 5: Solve for x
    x = 3,411,074,575.84/74,837.71
  6. Step 6: Final answer
    x = 45,579.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.