Home / 74,742.40-112,111.17-30,356.02

Finding the Fourth Proportional to 74,742.40, 112,111.17 and 30,356.02

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Solution

The fourth proportional to 74,742.40, 112,111.17 and 30,356.02 is: 45,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742.40 : 112,111.17 = 30,356.02 : x
  2. Step 2: Convert to fraction form
    74,742.40/112,111.17 = 30,356.02/x
  3. Step 3: Cross multiply
    74,742.40x = 112,111.17 × 30,356.02
  4. Step 4: Simplify right side
    74,742.40x = 3,403,248,918.74
  5. Step 5: Solve for x
    x = 3,403,248,918.74/74,742.40
  6. Step 6: Final answer
    x = 45,533.04

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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.