Home / 72,905.07-99,952.84-71,576.47

Finding the Fourth Proportional to 72,905.07, 99,952.84 and 71,576.47

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Solution

The fourth proportional to 72,905.07, 99,952.84 and 71,576.47 is: 98,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,905.07 : 99,952.84 = 71,576.47 : x
  2. Step 2: Convert to fraction form
    72,905.07/99,952.84 = 71,576.47/x
  3. Step 3: Cross multiply
    72,905.07x = 99,952.84 × 71,576.47
  4. Step 4: Simplify right side
    72,905.07x = 7,154,270,596.03
  5. Step 5: Solve for x
    x = 7,154,270,596.03/72,905.07
  6. Step 6: Final answer
    x = 98,131.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.