Home / 71,125.08-98,110.38-45,989.40

Finding the Fourth Proportional to 71,125.08, 98,110.38 and 45,989.40

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Solution

The fourth proportional to 71,125.08, 98,110.38 and 45,989.40 is: 63,438.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,125.08 : 98,110.38 = 45,989.40 : x
  2. Step 2: Convert to fraction form
    71,125.08/98,110.38 = 45,989.40/x
  3. Step 3: Cross multiply
    71,125.08x = 98,110.38 × 45,989.40
  4. Step 4: Simplify right side
    71,125.08x = 4,512,037,509.97
  5. Step 5: Solve for x
    x = 4,512,037,509.97/71,125.08
  6. Step 6: Final answer
    x = 63,438.07

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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.