Home / 42,730.29-64,039.66-30,923.82

Finding the Fourth Proportional to 42,730.29, 64,039.66 and 30,923.82

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Solution

The fourth proportional to 42,730.29, 64,039.66 and 30,923.82 is: 46,345.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,730.29 : 64,039.66 = 30,923.82 : x
  2. Step 2: Convert to fraction form
    42,730.29/64,039.66 = 30,923.82/x
  3. Step 3: Cross multiply
    42,730.29x = 64,039.66 × 30,923.82
  4. Step 4: Simplify right side
    42,730.29x = 1,980,350,918.70
  5. Step 5: Solve for x
    x = 1,980,350,918.70/42,730.29
  6. Step 6: Final answer
    x = 46,345.37

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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.