Home / 56,477.73-77,939.84-30,984.13

Finding the Fourth Proportional to 56,477.73, 77,939.84 and 30,984.13

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Solution

The fourth proportional to 56,477.73, 77,939.84 and 30,984.13 is: 42,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,477.73 : 77,939.84 = 30,984.13 : x
  2. Step 2: Convert to fraction form
    56,477.73/77,939.84 = 30,984.13/x
  3. Step 3: Cross multiply
    56,477.73x = 77,939.84 × 30,984.13
  4. Step 4: Simplify right side
    56,477.73x = 2,414,898,017.35
  5. Step 5: Solve for x
    x = 2,414,898,017.35/56,477.73
  6. Step 6: Final answer
    x = 42,758.41

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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.