Home / 70,946.15-106,419.69-18,356.09

Finding the Fourth Proportional to 70,946.15, 106,419.69 and 18,356.09

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Solution

The fourth proportional to 70,946.15, 106,419.69 and 18,356.09 is: 27,534.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,946.15 : 106,419.69 = 18,356.09 : x
  2. Step 2: Convert to fraction form
    70,946.15/106,419.69 = 18,356.09/x
  3. Step 3: Cross multiply
    70,946.15x = 106,419.69 × 18,356.09
  4. Step 4: Simplify right side
    70,946.15x = 1,953,448,875.31
  5. Step 5: Solve for x
    x = 1,953,448,875.31/70,946.15
  6. Step 6: Final answer
    x = 27,534.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.