Home / 71,430.87-98,554.65-56,276.49

Finding the Fourth Proportional to 71,430.87, 98,554.65 and 56,276.49

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Solution

The fourth proportional to 71,430.87, 98,554.65 and 56,276.49 is: 77,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,430.87 : 98,554.65 = 56,276.49 : x
  2. Step 2: Convert to fraction form
    71,430.87/98,554.65 = 56,276.49/x
  3. Step 3: Cross multiply
    71,430.87x = 98,554.65 × 56,276.49
  4. Step 4: Simplify right side
    71,430.87x = 5,546,309,775.18
  5. Step 5: Solve for x
    x = 5,546,309,775.18/71,430.87
  6. Step 6: Final answer
    x = 77,645.84

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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.