Home / 56,081.56-77,392.48-30,931.04

Finding the Fourth Proportional to 56,081.56, 77,392.48 and 30,931.04

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Solution

The fourth proportional to 56,081.56, 77,392.48 and 30,931.04 is: 42,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,081.56 : 77,392.48 = 30,931.04 : x
  2. Step 2: Convert to fraction form
    56,081.56/77,392.48 = 30,931.04/x
  3. Step 3: Cross multiply
    56,081.56x = 77,392.48 × 30,931.04
  4. Step 4: Simplify right side
    56,081.56x = 2,393,829,894.58
  5. Step 5: Solve for x
    x = 2,393,829,894.58/56,081.56
  6. Step 6: Final answer
    x = 42,684.80

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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.