Home / 53,750.36-74,169.60-31,089.80

Finding the Fourth Proportional to 53,750.36, 74,169.60 and 31,089.80

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Solution

The fourth proportional to 53,750.36, 74,169.60 and 31,089.80 is: 42,900.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,750.36 : 74,169.60 = 31,089.80 : x
  2. Step 2: Convert to fraction form
    53,750.36/74,169.60 = 31,089.80/x
  3. Step 3: Cross multiply
    53,750.36x = 74,169.60 × 31,089.80
  4. Step 4: Simplify right side
    53,750.36x = 2,305,918,030.08
  5. Step 5: Solve for x
    x = 2,305,918,030.08/53,750.36
  6. Step 6: Final answer
    x = 42,900.51

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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.