Home / 57,208.30-85,812.45-53,320.30

Finding the Fourth Proportional to 57,208.30, 85,812.45 and 53,320.30

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Solution

The fourth proportional to 57,208.30, 85,812.45 and 53,320.30 is: 79,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208.30 : 85,812.45 = 53,320.30 : x
  2. Step 2: Convert to fraction form
    57,208.30/85,812.45 = 53,320.30/x
  3. Step 3: Cross multiply
    57,208.30x = 85,812.45 × 53,320.30
  4. Step 4: Simplify right side
    57,208.30x = 4,575,545,577.74
  5. Step 5: Solve for x
    x = 4,575,545,577.74/57,208.30
  6. Step 6: Final answer
    x = 79,980.45

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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.