Home / 93,991.35-129,708.70-51,550.18

Finding the Fourth Proportional to 93,991.35, 129,708.70 and 51,550.18

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Solution

The fourth proportional to 93,991.35, 129,708.70 and 51,550.18 is: 71,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,991.35 : 129,708.70 = 51,550.18 : x
  2. Step 2: Convert to fraction form
    93,991.35/129,708.70 = 51,550.18/x
  3. Step 3: Cross multiply
    93,991.35x = 129,708.70 × 51,550.18
  4. Step 4: Simplify right side
    93,991.35x = 6,686,507,254.02
  5. Step 5: Solve for x
    x = 6,686,507,254.02/93,991.35
  6. Step 6: Final answer
    x = 71,139.60

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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.