Home / 43,080.95-64,631.74-20,868.36

Finding the Fourth Proportional to 43,080.95, 64,631.74 and 20,868.36

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Solution

The fourth proportional to 43,080.95, 64,631.74 and 20,868.36 is: 31,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,080.95 : 64,631.74 = 20,868.36 : x
  2. Step 2: Convert to fraction form
    43,080.95/64,631.74 = 20,868.36/x
  3. Step 3: Cross multiply
    43,080.95x = 64,631.74 × 20,868.36
  4. Step 4: Simplify right side
    43,080.95x = 1,348,758,417.75
  5. Step 5: Solve for x
    x = 1,348,758,417.75/43,080.95
  6. Step 6: Final answer
    x = 31,307.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.