Home / 70,928.66-97,871-40,715.12

Finding the Fourth Proportional to 70,928.66, 97,871 and 40,715.12

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Solution

The fourth proportional to 70,928.66, 97,871 and 40,715.12 is: 56,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,928.66 : 97,871 = 40,715.12 : x
  2. Step 2: Convert to fraction form
    70,928.66/97,871 = 40,715.12/x
  3. Step 3: Cross multiply
    70,928.66x = 97,871 × 40,715.12
  4. Step 4: Simplify right side
    70,928.66x = 3,984,829,509.52
  5. Step 5: Solve for x
    x = 3,984,829,509.52/70,928.66
  6. Step 6: Final answer
    x = 56,180.81

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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.