Home / 99,365.50-137,124.75-54,043.48

Finding the Fourth Proportional to 99,365.50, 137,124.75 and 54,043.48

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Solution

The fourth proportional to 99,365.50, 137,124.75 and 54,043.48 is: 74,580.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,365.50 : 137,124.75 = 54,043.48 : x
  2. Step 2: Convert to fraction form
    99,365.50/137,124.75 = 54,043.48/x
  3. Step 3: Cross multiply
    99,365.50x = 137,124.75 × 54,043.48
  4. Step 4: Simplify right side
    99,365.50x = 7,410,698,684.13
  5. Step 5: Solve for x
    x = 7,410,698,684.13/99,365.50
  6. Step 6: Final answer
    x = 74,580.20

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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.