Home / 70,621.13-105,931.87-17,313.35

Finding the Fourth Proportional to 70,621.13, 105,931.87 and 17,313.35

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Solution

The fourth proportional to 70,621.13, 105,931.87 and 17,313.35 is: 25,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,621.13 : 105,931.87 = 17,313.35 : x
  2. Step 2: Convert to fraction form
    70,621.13/105,931.87 = 17,313.35/x
  3. Step 3: Cross multiply
    70,621.13x = 105,931.87 × 17,313.35
  4. Step 4: Simplify right side
    70,621.13x = 1,834,034,968.52
  5. Step 5: Solve for x
    x = 1,834,034,968.52/70,621.13
  6. Step 6: Final answer
    x = 25,970.06

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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.