Home / 57,715.10-86,572.65-53,438.30

Finding the Fourth Proportional to 57,715.10, 86,572.65 and 53,438.30

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Solution

The fourth proportional to 57,715.10, 86,572.65 and 53,438.30 is: 80,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,715.10 : 86,572.65 = 53,438.30 : x
  2. Step 2: Convert to fraction form
    57,715.10/86,572.65 = 53,438.30/x
  3. Step 3: Cross multiply
    57,715.10x = 86,572.65 × 53,438.30
  4. Step 4: Simplify right side
    57,715.10x = 4,626,295,242.50
  5. Step 5: Solve for x
    x = 4,626,295,242.50/57,715.10
  6. Step 6: Final answer
    x = 80,157.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.