Home / 52,430.28-72,351.39-28,555.53

Finding the Fourth Proportional to 52,430.28, 72,351.39 and 28,555.53

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Solution

The fourth proportional to 52,430.28, 72,351.39 and 28,555.53 is: 39,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,430.28 : 72,351.39 = 28,555.53 : x
  2. Step 2: Convert to fraction form
    52,430.28/72,351.39 = 28,555.53/x
  3. Step 3: Cross multiply
    52,430.28x = 72,351.39 × 28,555.53
  4. Step 4: Simplify right side
    52,430.28x = 2,066,032,287.69
  5. Step 5: Solve for x
    x = 2,066,032,287.69/52,430.28
  6. Step 6: Final answer
    x = 39,405.33

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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.