Home / 53,626.40-74,015.20-30,969.08

Finding the Fourth Proportional to 53,626.40, 74,015.20 and 30,969.08

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Solution

The fourth proportional to 53,626.40, 74,015.20 and 30,969.08 is: 42,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,626.40 : 74,015.20 = 30,969.08 : x
  2. Step 2: Convert to fraction form
    53,626.40/74,015.20 = 30,969.08/x
  3. Step 3: Cross multiply
    53,626.40x = 74,015.20 × 30,969.08
  4. Step 4: Simplify right side
    53,626.40x = 2,292,182,596.21
  5. Step 5: Solve for x
    x = 2,292,182,596.21/53,626.40
  6. Step 6: Final answer
    x = 42,743.55

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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.