Home / 55,022.40-75,929.40-31,148.88

Finding the Fourth Proportional to 55,022.40, 75,929.40 and 31,148.88

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Solution

The fourth proportional to 55,022.40, 75,929.40 and 31,148.88 is: 42,984.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,022.40 : 75,929.40 = 31,148.88 : x
  2. Step 2: Convert to fraction form
    55,022.40/75,929.40 = 31,148.88/x
  3. Step 3: Cross multiply
    55,022.40x = 75,929.40 × 31,148.88
  4. Step 4: Simplify right side
    55,022.40x = 2,365,115,769.07
  5. Step 5: Solve for x
    x = 2,365,115,769.07/55,022.40
  6. Step 6: Final answer
    x = 42,984.60

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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.