Home / 65,795.58-90,691.26-51,430.03

Finding the Fourth Proportional to 65,795.58, 90,691.26 and 51,430.03

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Solution

The fourth proportional to 65,795.58, 90,691.26 and 51,430.03 is: 70,890.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,795.58 : 90,691.26 = 51,430.03 : x
  2. Step 2: Convert to fraction form
    65,795.58/90,691.26 = 51,430.03/x
  3. Step 3: Cross multiply
    65,795.58x = 90,691.26 × 51,430.03
  4. Step 4: Simplify right side
    65,795.58x = 4,664,254,222.54
  5. Step 5: Solve for x
    x = 4,664,254,222.54/65,795.58
  6. Step 6: Final answer
    x = 70,890.08

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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.