Home / 79,386.98-109,555.27-43,580.25

Finding the Fourth Proportional to 79,386.98, 109,555.27 and 43,580.25

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Solution

The fourth proportional to 79,386.98, 109,555.27 and 43,580.25 is: 60,141.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,386.98 : 109,555.27 = 43,580.25 : x
  2. Step 2: Convert to fraction form
    79,386.98/109,555.27 = 43,580.25/x
  3. Step 3: Cross multiply
    79,386.98x = 109,555.27 × 43,580.25
  4. Step 4: Simplify right side
    79,386.98x = 4,774,445,946.47
  5. Step 5: Solve for x
    x = 4,774,445,946.47/79,386.98
  6. Step 6: Final answer
    x = 60,141.43

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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.