Home / 40,485.47-60,746.66-20,777.87

Finding the Fourth Proportional to 40,485.47, 60,746.66 and 20,777.87

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Solution

The fourth proportional to 40,485.47, 60,746.66 and 20,777.87 is: 31,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,485.47 : 60,746.66 = 20,777.87 : x
  2. Step 2: Convert to fraction form
    40,485.47/60,746.66 = 20,777.87/x
  3. Step 3: Cross multiply
    40,485.47x = 60,746.66 × 20,777.87
  4. Step 4: Simplify right side
    40,485.47x = 1,262,185,988.61
  5. Step 5: Solve for x
    x = 1,262,185,988.61/40,485.47
  6. Step 6: Final answer
    x = 31,176.27

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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.