Home / 55,212.60-76,195.24-31,017.84

Finding the Fourth Proportional to 55,212.60, 76,195.24 and 31,017.84

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Solution

The fourth proportional to 55,212.60, 76,195.24 and 31,017.84 is: 42,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.60 : 76,195.24 = 31,017.84 : x
  2. Step 2: Convert to fraction form
    55,212.60/76,195.24 = 31,017.84/x
  3. Step 3: Cross multiply
    55,212.60x = 76,195.24 × 31,017.84
  4. Step 4: Simplify right side
    55,212.60x = 2,363,411,763.08
  5. Step 5: Solve for x
    x = 2,363,411,763.08/55,212.60
  6. Step 6: Final answer
    x = 42,805.66

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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.