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Finding the Fourth Proportional to 56,954.80, 78,598.80 and 31,804.32

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Solution

The fourth proportional to 56,954.80, 78,598.80 and 31,804.32 is: 43,890.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,954.80 : 78,598.80 = 31,804.32 : x
  2. Step 2: Convert to fraction form
    56,954.80/78,598.80 = 31,804.32/x
  3. Step 3: Cross multiply
    56,954.80x = 78,598.80 × 31,804.32
  4. Step 4: Simplify right side
    56,954.80x = 2,499,781,386.82
  5. Step 5: Solve for x
    x = 2,499,781,386.82/56,954.80
  6. Step 6: Final answer
    x = 43,890.62

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1.5x scale

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.