Home / 64,570.14-89,114.04-39,090.57

Finding the Fourth Proportional to 64,570.14, 89,114.04 and 39,090.57

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Solution

The fourth proportional to 64,570.14, 89,114.04 and 39,090.57 is: 53,949.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,570.14 : 89,114.04 = 39,090.57 : x
  2. Step 2: Convert to fraction form
    64,570.14/89,114.04 = 39,090.57/x
  3. Step 3: Cross multiply
    64,570.14x = 89,114.04 × 39,090.57
  4. Step 4: Simplify right side
    64,570.14x = 3,483,518,618.60
  5. Step 5: Solve for x
    x = 3,483,518,618.60/64,570.14
  6. Step 6: Final answer
    x = 53,949.37

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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.