Home / 52,415.78-72,331.62-28,542.40

Finding the Fourth Proportional to 52,415.78, 72,331.62 and 28,542.40

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Solution

The fourth proportional to 52,415.78, 72,331.62 and 28,542.40 is: 39,387.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,415.78 : 72,331.62 = 28,542.40 : x
  2. Step 2: Convert to fraction form
    52,415.78/72,331.62 = 28,542.40/x
  3. Step 3: Cross multiply
    52,415.78x = 72,331.62 × 28,542.40
  4. Step 4: Simplify right side
    52,415.78x = 2,064,518,030.69
  5. Step 5: Solve for x
    x = 2,064,518,030.69/52,415.78
  6. Step 6: Final answer
    x = 39,387.34

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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.