Home / 55,511.04-76,607.28-31,641.60

Finding the Fourth Proportional to 55,511.04, 76,607.28 and 31,641.60

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Solution

The fourth proportional to 55,511.04, 76,607.28 and 31,641.60 is: 43,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,511.04 : 76,607.28 = 31,641.60 : x
  2. Step 2: Convert to fraction form
    55,511.04/76,607.28 = 31,641.60/x
  3. Step 3: Cross multiply
    55,511.04x = 76,607.28 × 31,641.60
  4. Step 4: Simplify right side
    55,511.04x = 2,423,976,910.85
  5. Step 5: Solve for x
    x = 2,423,976,910.85/55,511.04
  6. Step 6: Final answer
    x = 43,666.57

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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.