Home / 70,145.82-96,803.28-38,315.22

Finding the Fourth Proportional to 70,145.82, 96,803.28 and 38,315.22

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Solution

The fourth proportional to 70,145.82, 96,803.28 and 38,315.22 is: 52,876.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,145.82 : 96,803.28 = 38,315.22 : x
  2. Step 2: Convert to fraction form
    70,145.82/96,803.28 = 38,315.22/x
  3. Step 3: Cross multiply
    70,145.82x = 96,803.28 × 38,315.22
  4. Step 4: Simplify right side
    70,145.82x = 3,709,038,969.92
  5. Step 5: Solve for x
    x = 3,709,038,969.92/70,145.82
  6. Step 6: Final answer
    x = 52,876.12

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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.