Home / 75,308.48-112,962.75-28,561.36

Finding the Fourth Proportional to 75,308.48, 112,962.75 and 28,561.36

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Solution

The fourth proportional to 75,308.48, 112,962.75 and 28,561.36 is: 42,842.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,308.48 : 112,962.75 = 28,561.36 : x
  2. Step 2: Convert to fraction form
    75,308.48/112,962.75 = 28,561.36/x
  3. Step 3: Cross multiply
    75,308.48x = 112,962.75 × 28,561.36
  4. Step 4: Simplify right side
    75,308.48x = 3,226,369,752.29
  5. Step 5: Solve for x
    x = 3,226,369,752.29/75,308.48
  6. Step 6: Final answer
    x = 42,842.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.