Home / 56,419.03-77,878.46-38,501.22

Finding the Fourth Proportional to 56,419.03, 77,878.46 and 38,501.22

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Solution

The fourth proportional to 56,419.03, 77,878.46 and 38,501.22 is: 53,145.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,419.03 : 77,878.46 = 38,501.22 : x
  2. Step 2: Convert to fraction form
    56,419.03/77,878.46 = 38,501.22/x
  3. Step 3: Cross multiply
    56,419.03x = 77,878.46 × 38,501.22
  4. Step 4: Simplify right side
    56,419.03x = 2,998,416,110.02
  5. Step 5: Solve for x
    x = 2,998,416,110.02/56,419.03
  6. Step 6: Final answer
    x = 53,145.47

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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.