Home / 55,159.21-76,117.48-31,285.36

Finding the Fourth Proportional to 55,159.21, 76,117.48 and 31,285.36

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Solution

The fourth proportional to 55,159.21, 76,117.48 and 31,285.36 is: 43,172.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,159.21 : 76,117.48 = 31,285.36 : x
  2. Step 2: Convert to fraction form
    55,159.21/76,117.48 = 31,285.36/x
  3. Step 3: Cross multiply
    55,159.21x = 76,117.48 × 31,285.36
  4. Step 4: Simplify right side
    55,159.21x = 2,381,362,764.09
  5. Step 5: Solve for x
    x = 2,381,362,764.09/55,159.21
  6. Step 6: Final answer
    x = 43,172.53

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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.