Home / 72,794.13-100,510.65-71,631.60

Finding the Fourth Proportional to 72,794.13, 100,510.65 and 71,631.60

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Solution

The fourth proportional to 72,794.13, 100,510.65 and 71,631.60 is: 98,905.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,794.13 : 100,510.65 = 71,631.60 : x
  2. Step 2: Convert to fraction form
    72,794.13/100,510.65 = 71,631.60/x
  3. Step 3: Cross multiply
    72,794.13x = 100,510.65 × 71,631.60
  4. Step 4: Simplify right side
    72,794.13x = 7,199,738,676.54
  5. Step 5: Solve for x
    x = 7,199,738,676.54/72,794.13
  6. Step 6: Final answer
    x = 98,905.48

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1.5x scale

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.