Home / 65,670.12-90,602.28-37,368.72

Finding the Fourth Proportional to 65,670.12, 90,602.28 and 37,368.72

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Solution

The fourth proportional to 65,670.12, 90,602.28 and 37,368.72 is: 51,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,670.12 : 90,602.28 = 37,368.72 : x
  2. Step 2: Convert to fraction form
    65,670.12/90,602.28 = 37,368.72/x
  3. Step 3: Cross multiply
    65,670.12x = 90,602.28 × 37,368.72
  4. Step 4: Simplify right side
    65,670.12x = 3,385,691,232.68
  5. Step 5: Solve for x
    x = 3,385,691,232.68/65,670.12
  6. Step 6: Final answer
    x = 51,556.04

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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.