Home / 55,714.85-76,878.86-31,519.11

Finding the Fourth Proportional to 55,714.85, 76,878.86 and 31,519.11

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Solution

The fourth proportional to 55,714.85, 76,878.86 and 31,519.11 is: 43,492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,714.85 : 76,878.86 = 31,519.11 : x
  2. Step 2: Convert to fraction form
    55,714.85/76,878.86 = 31,519.11/x
  3. Step 3: Cross multiply
    55,714.85x = 76,878.86 × 31,519.11
  4. Step 4: Simplify right side
    55,714.85x = 2,423,153,400.58
  5. Step 5: Solve for x
    x = 2,423,153,400.58/55,714.85
  6. Step 6: Final answer
    x = 43,492.06

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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.