Home / 53,387.56-73,669.93-30,720.52

Finding the Fourth Proportional to 53,387.56, 73,669.93 and 30,720.52

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Solution

The fourth proportional to 53,387.56, 73,669.93 and 30,720.52 is: 42,391.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,387.56 : 73,669.93 = 30,720.52 : x
  2. Step 2: Convert to fraction form
    53,387.56/73,669.93 = 30,720.52/x
  3. Step 3: Cross multiply
    53,387.56x = 73,669.93 × 30,720.52
  4. Step 4: Simplify right side
    53,387.56x = 2,263,178,557.96
  5. Step 5: Solve for x
    x = 2,263,178,557.96/53,387.56
  6. Step 6: Final answer
    x = 42,391.50

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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.