Home / 56,376.78-77,802.36-31,226.28

Finding the Fourth Proportional to 56,376.78, 77,802.36 and 31,226.28

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Solution

The fourth proportional to 56,376.78, 77,802.36 and 31,226.28 is: 43,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,376.78 : 77,802.36 = 31,226.28 : x
  2. Step 2: Convert to fraction form
    56,376.78/77,802.36 = 31,226.28/x
  3. Step 3: Cross multiply
    56,376.78x = 77,802.36 × 31,226.28
  4. Step 4: Simplify right side
    56,376.78x = 2,429,478,278.02
  5. Step 5: Solve for x
    x = 2,429,478,278.02/56,376.78
  6. Step 6: Final answer
    x = 43,093.60

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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.