Home / 53,573.40-73,929.31-30,913.45

Finding the Fourth Proportional to 53,573.40, 73,929.31 and 30,913.45

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Solution

The fourth proportional to 53,573.40, 73,929.31 and 30,913.45 is: 42,659.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,573.40 : 73,929.31 = 30,913.45 : x
  2. Step 2: Convert to fraction form
    53,573.40/73,929.31 = 30,913.45/x
  3. Step 3: Cross multiply
    53,573.40x = 73,929.31 × 30,913.45
  4. Step 4: Simplify right side
    53,573.40x = 2,285,409,766.11
  5. Step 5: Solve for x
    x = 2,285,409,766.11/53,573.40
  6. Step 6: Final answer
    x = 42,659.41

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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.