Home / 53,479.36-73,809.59-30,821.70

Finding the Fourth Proportional to 53,479.36, 73,809.59 and 30,821.70

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Solution

The fourth proportional to 53,479.36, 73,809.59 and 30,821.70 is: 42,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,479.36 : 73,809.59 = 30,821.70 : x
  2. Step 2: Convert to fraction form
    53,479.36/73,809.59 = 30,821.70/x
  3. Step 3: Cross multiply
    53,479.36x = 73,809.59 × 30,821.70
  4. Step 4: Simplify right side
    53,479.36x = 2,274,937,040.10
  5. Step 5: Solve for x
    x = 2,274,937,040.10/53,479.36
  6. Step 6: Final answer
    x = 42,538.60

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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.