Home / 64,839.99-89,420.96-55,314.24

Finding the Fourth Proportional to 64,839.99, 89,420.96 and 55,314.24

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Solution

The fourth proportional to 64,839.99, 89,420.96 and 55,314.24 is: 76,283.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,839.99 : 89,420.96 = 55,314.24 : x
  2. Step 2: Convert to fraction form
    64,839.99/89,420.96 = 55,314.24/x
  3. Step 3: Cross multiply
    64,839.99x = 89,420.96 × 55,314.24
  4. Step 4: Simplify right side
    64,839.99x = 4,946,252,748.42
  5. Step 5: Solve for x
    x = 4,946,252,748.42/64,839.99
  6. Step 6: Final answer
    x = 76,283.98

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1.5x scale

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.