Home / 71,386.16-98,507.48-39,554.37

Finding the Fourth Proportional to 71,386.16, 98,507.48 and 39,554.37

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Solution

The fourth proportional to 71,386.16, 98,507.48 and 39,554.37 is: 54,582.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,386.16 : 98,507.48 = 39,554.37 : x
  2. Step 2: Convert to fraction form
    71,386.16/98,507.48 = 39,554.37/x
  3. Step 3: Cross multiply
    71,386.16x = 98,507.48 × 39,554.37
  4. Step 4: Simplify right side
    71,386.16x = 3,896,401,113.92
  5. Step 5: Solve for x
    x = 3,896,401,113.92/71,386.16
  6. Step 6: Final answer
    x = 54,582.03

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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.