Home / 99,278.02-137,003.16-53,955.28

Finding the Fourth Proportional to 99,278.02, 137,003.16 and 53,955.28

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Solution

The fourth proportional to 99,278.02, 137,003.16 and 53,955.28 is: 74,458.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,278.02 : 137,003.16 = 53,955.28 : x
  2. Step 2: Convert to fraction form
    99,278.02/137,003.16 = 53,955.28/x
  3. Step 3: Cross multiply
    99,278.02x = 137,003.16 × 53,955.28
  4. Step 4: Simplify right side
    99,278.02x = 7,392,043,858.68
  5. Step 5: Solve for x
    x = 7,392,043,858.68/99,278.02
  6. Step 6: Final answer
    x = 74,458.01

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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.