Home / 55,272.86-76,267.22-31,070.63

Finding the Fourth Proportional to 55,272.86, 76,267.22 and 31,070.63

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Solution

The fourth proportional to 55,272.86, 76,267.22 and 31,070.63 is: 42,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,272.86 : 76,267.22 = 31,070.63 : x
  2. Step 2: Convert to fraction form
    55,272.86/76,267.22 = 31,070.63/x
  3. Step 3: Cross multiply
    55,272.86x = 76,267.22 × 31,070.63
  4. Step 4: Simplify right side
    55,272.86x = 2,369,670,153.57
  5. Step 5: Solve for x
    x = 2,369,670,153.57/55,272.86
  6. Step 6: Final answer
    x = 42,872.22

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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.