Home / 71,047.87-98,045.59-38,782.36

Finding the Fourth Proportional to 71,047.87, 98,045.59 and 38,782.36

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Solution

The fourth proportional to 71,047.87, 98,045.59 and 38,782.36 is: 53,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,047.87 : 98,045.59 = 38,782.36 : x
  2. Step 2: Convert to fraction form
    71,047.87/98,045.59 = 38,782.36/x
  3. Step 3: Cross multiply
    71,047.87x = 98,045.59 × 38,782.36
  4. Step 4: Simplify right side
    71,047.87x = 3,802,439,367.79
  5. Step 5: Solve for x
    x = 3,802,439,367.79/71,047.87
  6. Step 6: Final answer
    x = 53,519.40

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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.