Home / 70,941.81-97,899.70-39,112.76

Finding the Fourth Proportional to 70,941.81, 97,899.70 and 39,112.76

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Solution

The fourth proportional to 70,941.81, 97,899.70 and 39,112.76 is: 53,975.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,941.81 : 97,899.70 = 39,112.76 : x
  2. Step 2: Convert to fraction form
    70,941.81/97,899.70 = 39,112.76/x
  3. Step 3: Cross multiply
    70,941.81x = 97,899.70 × 39,112.76
  4. Step 4: Simplify right side
    70,941.81x = 3,829,127,470.17
  5. Step 5: Solve for x
    x = 3,829,127,470.17/70,941.81
  6. Step 6: Final answer
    x = 53,975.61

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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.