Home / 52,415.78-72,335.06-28,543.74

Finding the Fourth Proportional to 52,415.78, 72,335.06 and 28,543.74

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Solution

The fourth proportional to 52,415.78, 72,335.06 and 28,543.74 is: 39,391.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,415.78 : 72,335.06 = 28,543.74 : x
  2. Step 2: Convert to fraction form
    52,415.78/72,335.06 = 28,543.74/x
  3. Step 3: Cross multiply
    52,415.78x = 72,335.06 × 28,543.74
  4. Step 4: Simplify right side
    52,415.78x = 2,064,713,145.52
  5. Step 5: Solve for x
    x = 2,064,713,145.52/52,415.78
  6. Step 6: Final answer
    x = 39,391.06

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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.