Home / 55,641.24-76,784.94-30,490.74

Finding the Fourth Proportional to 55,641.24, 76,784.94 and 30,490.74

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Solution

The fourth proportional to 55,641.24, 76,784.94 and 30,490.74 is: 42,077.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,641.24 : 76,784.94 = 30,490.74 : x
  2. Step 2: Convert to fraction form
    55,641.24/76,784.94 = 30,490.74/x
  3. Step 3: Cross multiply
    55,641.24x = 76,784.94 × 30,490.74
  4. Step 4: Simplify right side
    55,641.24x = 2,341,229,641.46
  5. Step 5: Solve for x
    x = 2,341,229,641.46/55,641.24
  6. Step 6: Final answer
    x = 42,077.24

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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.