Home / 70,905.72-97,850.54-39,075.76

Finding the Fourth Proportional to 70,905.72, 97,850.54 and 39,075.76

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Solution

The fourth proportional to 70,905.72, 97,850.54 and 39,075.76 is: 53,924.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,905.72 : 97,850.54 = 39,075.76 : x
  2. Step 2: Convert to fraction form
    70,905.72/97,850.54 = 39,075.76/x
  3. Step 3: Cross multiply
    70,905.72x = 97,850.54 × 39,075.76
  4. Step 4: Simplify right side
    70,905.72x = 3,823,584,216.91
  5. Step 5: Solve for x
    x = 3,823,584,216.91/70,905.72
  6. Step 6: Final answer
    x = 53,924.91

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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.