Home / 55,782.03-76,980.08-30,288.38

Finding the Fourth Proportional to 55,782.03, 76,980.08 and 30,288.38

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Solution

The fourth proportional to 55,782.03, 76,980.08 and 30,288.38 is: 41,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,782.03 : 76,980.08 = 30,288.38 : x
  2. Step 2: Convert to fraction form
    55,782.03/76,980.08 = 30,288.38/x
  3. Step 3: Cross multiply
    55,782.03x = 76,980.08 × 30,288.38
  4. Step 4: Simplify right side
    55,782.03x = 2,331,602,081.90
  5. Step 5: Solve for x
    x = 2,331,602,081.90/55,782.03
  6. Step 6: Final answer
    x = 41,798.44

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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.