Home / 74,045.32-102,180-42,224.46

Finding the Fourth Proportional to 74,045.32, 102,180 and 42,224.46

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Solution

The fourth proportional to 74,045.32, 102,180 and 42,224.46 is: 58,268.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,045.32 : 102,180 = 42,224.46 : x
  2. Step 2: Convert to fraction form
    74,045.32/102,180 = 42,224.46/x
  3. Step 3: Cross multiply
    74,045.32x = 102,180 × 42,224.46
  4. Step 4: Simplify right side
    74,045.32x = 4,314,495,322.80
  5. Step 5: Solve for x
    x = 4,314,495,322.80/74,045.32
  6. Step 6: Final answer
    x = 58,268.31

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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.