Home / 70,730.21-97,603.38-38,899.04

Finding the Fourth Proportional to 70,730.21, 97,603.38 and 38,899.04

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Solution

The fourth proportional to 70,730.21, 97,603.38 and 38,899.04 is: 53,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,730.21 : 97,603.38 = 38,899.04 : x
  2. Step 2: Convert to fraction form
    70,730.21/97,603.38 = 38,899.04/x
  3. Step 3: Cross multiply
    70,730.21x = 97,603.38 × 38,899.04
  4. Step 4: Simplify right side
    70,730.21x = 3,796,677,294.74
  5. Step 5: Solve for x
    x = 3,796,677,294.74/70,730.21
  6. Step 6: Final answer
    x = 53,678.30

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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.