Home / 53,630.90-74,021.42-30,973.58

Finding the Fourth Proportional to 53,630.90, 74,021.42 and 30,973.58

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Solution

The fourth proportional to 53,630.90, 74,021.42 and 30,973.58 is: 42,749.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,630.90 : 74,021.42 = 30,973.58 : x
  2. Step 2: Convert to fraction form
    53,630.90/74,021.42 = 30,973.58/x
  3. Step 3: Cross multiply
    53,630.90x = 74,021.42 × 30,973.58
  4. Step 4: Simplify right side
    53,630.90x = 2,292,707,849.11
  5. Step 5: Solve for x
    x = 2,292,707,849.11/53,630.90
  6. Step 6: Final answer
    x = 42,749.76

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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.