Home / 75,210.72-103,801.68-43,373.28

Finding the Fourth Proportional to 75,210.72, 103,801.68 and 43,373.28

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Solution

The fourth proportional to 75,210.72, 103,801.68 and 43,373.28 is: 59,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,210.72 : 103,801.68 = 43,373.28 : x
  2. Step 2: Convert to fraction form
    75,210.72/103,801.68 = 43,373.28/x
  3. Step 3: Cross multiply
    75,210.72x = 103,801.68 × 43,373.28
  4. Step 4: Simplify right side
    75,210.72x = 4,502,219,331.11
  5. Step 5: Solve for x
    x = 4,502,219,331.11/75,210.72
  6. Step 6: Final answer
    x = 59,861.40

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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.