Home / 53,177.41-73,384.51-28,978.32

Finding the Fourth Proportional to 53,177.41, 73,384.51 and 28,978.32

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Solution

The fourth proportional to 53,177.41, 73,384.51 and 28,978.32 is: 39,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,177.41 : 73,384.51 = 28,978.32 : x
  2. Step 2: Convert to fraction form
    53,177.41/73,384.51 = 28,978.32/x
  3. Step 3: Cross multiply
    53,177.41x = 73,384.51 × 28,978.32
  4. Step 4: Simplify right side
    53,177.41x = 2,126,559,668.93
  5. Step 5: Solve for x
    x = 2,126,559,668.93/53,177.41
  6. Step 6: Final answer
    x = 39,989.91

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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.