Home / 53,470.09-73,790.46-30,807.28

Finding the Fourth Proportional to 53,470.09, 73,790.46 and 30,807.28

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Solution

The fourth proportional to 53,470.09, 73,790.46 and 30,807.28 is: 42,515.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,470.09 : 73,790.46 = 30,807.28 : x
  2. Step 2: Convert to fraction form
    53,470.09/73,790.46 = 30,807.28/x
  3. Step 3: Cross multiply
    53,470.09x = 73,790.46 × 30,807.28
  4. Step 4: Simplify right side
    53,470.09x = 2,273,283,362.55
  5. Step 5: Solve for x
    x = 2,273,283,362.55/53,470.09
  6. Step 6: Final answer
    x = 42,515.05

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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.