Home / 74,531.32-102,852.72-42,272.08

Finding the Fourth Proportional to 74,531.32, 102,852.72 and 42,272.08

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Solution

The fourth proportional to 74,531.32, 102,852.72 and 42,272.08 is: 58,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,531.32 : 102,852.72 = 42,272.08 : x
  2. Step 2: Convert to fraction form
    74,531.32/102,852.72 = 42,272.08/x
  3. Step 3: Cross multiply
    74,531.32x = 102,852.72 × 42,272.08
  4. Step 4: Simplify right side
    74,531.32x = 4,347,798,408.06
  5. Step 5: Solve for x
    x = 4,347,798,408.06/74,531.32
  6. Step 6: Final answer
    x = 58,335.19

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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.