Home / 65,905.04-90,945.35-39,050.02

Finding the Fourth Proportional to 65,905.04, 90,945.35 and 39,050.02

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Solution

The fourth proportional to 65,905.04, 90,945.35 and 39,050.02 is: 53,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,905.04 : 90,945.35 = 39,050.02 : x
  2. Step 2: Convert to fraction form
    65,905.04/90,945.35 = 39,050.02/x
  3. Step 3: Cross multiply
    65,905.04x = 90,945.35 × 39,050.02
  4. Step 4: Simplify right side
    65,905.04x = 3,551,417,736.41
  5. Step 5: Solve for x
    x = 3,551,417,736.41/65,905.04
  6. Step 6: Final answer
    x = 53,886.89

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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.