Home / 72,473.36-108,688.96-28,090.20

Finding the Fourth Proportional to 72,473.36, 108,688.96 and 28,090.20

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Solution

The fourth proportional to 72,473.36, 108,688.96 and 28,090.20 is: 42,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,473.36 : 108,688.96 = 28,090.20 : x
  2. Step 2: Convert to fraction form
    72,473.36/108,688.96 = 28,090.20/x
  3. Step 3: Cross multiply
    72,473.36x = 108,688.96 × 28,090.20
  4. Step 4: Simplify right side
    72,473.36x = 3,053,094,624.19
  5. Step 5: Solve for x
    x = 3,053,094,624.19/72,473.36
  6. Step 6: Final answer
    x = 42,127.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.