Home / 61,105.36-84,211.26-47,655.40

Finding the Fourth Proportional to 61,105.36, 84,211.26 and 47,655.40

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Solution

The fourth proportional to 61,105.36, 84,211.26 and 47,655.40 is: 65,675.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,105.36 : 84,211.26 = 47,655.40 : x
  2. Step 2: Convert to fraction form
    61,105.36/84,211.26 = 47,655.40/x
  3. Step 3: Cross multiply
    61,105.36x = 84,211.26 × 47,655.40
  4. Step 4: Simplify right side
    61,105.36x = 4,013,121,279.80
  5. Step 5: Solve for x
    x = 4,013,121,279.80/61,105.36
  6. Step 6: Final answer
    x = 65,675.44

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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.