Home / 83,777.16-125,668.64-42,201.48

Finding the Fourth Proportional to 83,777.16, 125,668.64 and 42,201.48

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Solution

The fourth proportional to 83,777.16, 125,668.64 and 42,201.48 is: 63,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,777.16 : 125,668.64 = 42,201.48 : x
  2. Step 2: Convert to fraction form
    83,777.16/125,668.64 = 42,201.48/x
  3. Step 3: Cross multiply
    83,777.16x = 125,668.64 × 42,201.48
  4. Step 4: Simplify right side
    83,777.16x = 5,303,402,597.59
  5. Step 5: Solve for x
    x = 5,303,402,597.59/83,777.16
  6. Step 6: Final answer
    x = 63,303.68

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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.