Home / 53,627.52-74,016.75-30,970.20

Finding the Fourth Proportional to 53,627.52, 74,016.75 and 30,970.20

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Solution

The fourth proportional to 53,627.52, 74,016.75 and 30,970.20 is: 42,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,627.52 : 74,016.75 = 30,970.20 : x
  2. Step 2: Convert to fraction form
    53,627.52/74,016.75 = 30,970.20/x
  3. Step 3: Cross multiply
    53,627.52x = 74,016.75 × 30,970.20
  4. Step 4: Simplify right side
    53,627.52x = 2,292,313,944.55
  5. Step 5: Solve for x
    x = 2,292,313,944.55/53,627.52
  6. Step 6: Final answer
    x = 42,745.10

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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.