Home / 51,577.20-77,365.80-38,455.20

Finding the Fourth Proportional to 51,577.20, 77,365.80 and 38,455.20

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Solution

The fourth proportional to 51,577.20, 77,365.80 and 38,455.20 is: 57,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,577.20 : 77,365.80 = 38,455.20 : x
  2. Step 2: Convert to fraction form
    51,577.20/77,365.80 = 38,455.20/x
  3. Step 3: Cross multiply
    51,577.20x = 77,365.80 × 38,455.20
  4. Step 4: Simplify right side
    51,577.20x = 2,975,117,312.16
  5. Step 5: Solve for x
    x = 2,975,117,312.16/51,577.20
  6. Step 6: Final answer
    x = 57,682.80

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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.