Home / 70,939.89-97,901.46-39,108.74

Finding the Fourth Proportional to 70,939.89, 97,901.46 and 39,108.74

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Solution

The fourth proportional to 70,939.89, 97,901.46 and 39,108.74 is: 53,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,939.89 : 97,901.46 = 39,108.74 : x
  2. Step 2: Convert to fraction form
    70,939.89/97,901.46 = 39,108.74/x
  3. Step 3: Cross multiply
    70,939.89x = 97,901.46 × 39,108.74
  4. Step 4: Simplify right side
    70,939.89x = 3,828,802,255.25
  5. Step 5: Solve for x
    x = 3,828,802,255.25/70,939.89
  6. Step 6: Final answer
    x = 53,972.49

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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.