Home / 56,838.57-78,433.56-31,345.02

Finding the Fourth Proportional to 56,838.57, 78,433.56 and 31,345.02

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Solution

The fourth proportional to 56,838.57, 78,433.56 and 31,345.02 is: 43,254.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,838.57 : 78,433.56 = 31,345.02 : x
  2. Step 2: Convert to fraction form
    56,838.57/78,433.56 = 31,345.02/x
  3. Step 3: Cross multiply
    56,838.57x = 78,433.56 × 31,345.02
  4. Step 4: Simplify right side
    56,838.57x = 2,458,501,506.87
  5. Step 5: Solve for x
    x = 2,458,501,506.87/56,838.57
  6. Step 6: Final answer
    x = 43,254.11

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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.