Home / 70,869.72-97,805.16-40,664.28

Finding the Fourth Proportional to 70,869.72, 97,805.16 and 40,664.28

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Solution

The fourth proportional to 70,869.72, 97,805.16 and 40,664.28 is: 56,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,869.72 : 97,805.16 = 40,664.28 : x
  2. Step 2: Convert to fraction form
    70,869.72/97,805.16 = 40,664.28/x
  3. Step 3: Cross multiply
    70,869.72x = 97,805.16 × 40,664.28
  4. Step 4: Simplify right side
    70,869.72x = 3,977,176,411.68
  5. Step 5: Solve for x
    x = 3,977,176,411.68/70,869.72
  6. Step 6: Final answer
    x = 56,119.54

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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.