Home / 55,259.06-76,261.46-31,387.50

Finding the Fourth Proportional to 55,259.06, 76,261.46 and 31,387.50

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Solution

The fourth proportional to 55,259.06, 76,261.46 and 31,387.50 is: 43,317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,259.06 : 76,261.46 = 31,387.50 : x
  2. Step 2: Convert to fraction form
    55,259.06/76,261.46 = 31,387.50/x
  3. Step 3: Cross multiply
    55,259.06x = 76,261.46 × 31,387.50
  4. Step 4: Simplify right side
    55,259.06x = 2,393,656,418.81
  5. Step 5: Solve for x
    x = 2,393,656,418.81/55,259.06
  6. Step 6: Final answer
    x = 43,317.00

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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.