Home / 70,890.81-97,829.63-39,059.70

Finding the Fourth Proportional to 70,890.81, 97,829.63 and 39,059.70

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Solution

The fourth proportional to 70,890.81, 97,829.63 and 39,059.70 is: 53,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.81 : 97,829.63 = 39,059.70 : x
  2. Step 2: Convert to fraction form
    70,890.81/97,829.63 = 39,059.70/x
  3. Step 3: Cross multiply
    70,890.81x = 97,829.63 × 39,059.70
  4. Step 4: Simplify right side
    70,890.81x = 3,821,195,803.61
  5. Step 5: Solve for x
    x = 3,821,195,803.61/70,890.81
  6. Step 6: Final answer
    x = 53,902.56

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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.