Home / 72,837.05-100,542.45-53,869.47

Finding the Fourth Proportional to 72,837.05, 100,542.45 and 53,869.47

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Solution

The fourth proportional to 72,837.05, 100,542.45 and 53,869.47 is: 74,360.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,837.05 : 100,542.45 = 53,869.47 : x
  2. Step 2: Convert to fraction form
    72,837.05/100,542.45 = 53,869.47/x
  3. Step 3: Cross multiply
    72,837.05x = 100,542.45 × 53,869.47
  4. Step 4: Simplify right side
    72,837.05x = 5,416,168,494.00
  5. Step 5: Solve for x
    x = 5,416,168,494.00/72,837.05
  6. Step 6: Final answer
    x = 74,360.08

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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.