Home / 74,937.34-112,403.36-18,777.92

Finding the Fourth Proportional to 74,937.34, 112,403.36 and 18,777.92

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Solution

The fourth proportional to 74,937.34, 112,403.36 and 18,777.92 is: 28,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,937.34 : 112,403.36 = 18,777.92 : x
  2. Step 2: Convert to fraction form
    74,937.34/112,403.36 = 18,777.92/x
  3. Step 3: Cross multiply
    74,937.34x = 112,403.36 × 18,777.92
  4. Step 4: Simplify right side
    74,937.34x = 2,110,701,301.81
  5. Step 5: Solve for x
    x = 2,110,701,301.81/74,937.34
  6. Step 6: Final answer
    x = 28,166.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.