Home / 81,319.79-112,272.25-52,259.94

Finding the Fourth Proportional to 81,319.79, 112,272.25 and 52,259.94

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Solution

The fourth proportional to 81,319.79, 112,272.25 and 52,259.94 is: 72,151.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,319.79 : 112,272.25 = 52,259.94 : x
  2. Step 2: Convert to fraction form
    81,319.79/112,272.25 = 52,259.94/x
  3. Step 3: Cross multiply
    81,319.79x = 112,272.25 × 52,259.94
  4. Step 4: Simplify right side
    81,319.79x = 5,867,341,331.77
  5. Step 5: Solve for x
    x = 5,867,341,331.77/81,319.79
  6. Step 6: Final answer
    x = 72,151.46

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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.