Home / 64,728.24-89,352.50-43,519.80

Finding the Fourth Proportional to 64,728.24, 89,352.50 and 43,519.80

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Solution

The fourth proportional to 64,728.24, 89,352.50 and 43,519.80 is: 60,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,728.24 : 89,352.50 = 43,519.80 : x
  2. Step 2: Convert to fraction form
    64,728.24/89,352.50 = 43,519.80/x
  3. Step 3: Cross multiply
    64,728.24x = 89,352.50 × 43,519.80
  4. Step 4: Simplify right side
    64,728.24x = 3,888,602,929.50
  5. Step 5: Solve for x
    x = 3,888,602,929.50/64,728.24
  6. Step 6: Final answer
    x = 60,075.83

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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.