Home / 55,261.99-76,259.10-31,388.32

Finding the Fourth Proportional to 55,261.99, 76,259.10 and 31,388.32

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Solution

The fourth proportional to 55,261.99, 76,259.10 and 31,388.32 is: 43,314.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,261.99 : 76,259.10 = 31,388.32 : x
  2. Step 2: Convert to fraction form
    55,261.99/76,259.10 = 31,388.32/x
  3. Step 3: Cross multiply
    55,261.99x = 76,259.10 × 31,388.32
  4. Step 4: Simplify right side
    55,261.99x = 2,393,645,033.71
  5. Step 5: Solve for x
    x = 2,393,645,033.71/55,261.99
  6. Step 6: Final answer
    x = 43,314.49

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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.