Home / 55,782.65-76,980.15-30,289.02

Finding the Fourth Proportional to 55,782.65, 76,980.15 and 30,289.02

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Solution

The fourth proportional to 55,782.65, 76,980.15 and 30,289.02 is: 41,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,782.65 : 76,980.15 = 30,289.02 : x
  2. Step 2: Convert to fraction form
    55,782.65/76,980.15 = 30,289.02/x
  3. Step 3: Cross multiply
    55,782.65x = 76,980.15 × 30,289.02
  4. Step 4: Simplify right side
    55,782.65x = 2,331,653,302.95
  5. Step 5: Solve for x
    x = 2,331,653,302.95/55,782.65
  6. Step 6: Final answer
    x = 41,798.90

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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.