Home / 56,386.26-77,812.86-30,894.12

Finding the Fourth Proportional to 56,386.26, 77,812.86 and 30,894.12

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Solution

The fourth proportional to 56,386.26, 77,812.86 and 30,894.12 is: 42,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,386.26 : 77,812.86 = 30,894.12 : x
  2. Step 2: Convert to fraction form
    56,386.26/77,812.86 = 30,894.12/x
  3. Step 3: Cross multiply
    56,386.26x = 77,812.86 × 30,894.12
  4. Step 4: Simplify right side
    56,386.26x = 2,403,959,834.38
  5. Step 5: Solve for x
    x = 2,403,959,834.38/56,386.26
  6. Step 6: Final answer
    x = 42,633.79

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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.