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Finding the Fourth Proportional to 61,679.40, 92,519.10 and 56,430.60

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Solution

The fourth proportional to 61,679.40, 92,519.10 and 56,430.60 is: 84,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,679.40 : 92,519.10 = 56,430.60 : x
  2. Step 2: Convert to fraction form
    61,679.40/92,519.10 = 56,430.60/x
  3. Step 3: Cross multiply
    61,679.40x = 92,519.10 × 56,430.60
  4. Step 4: Simplify right side
    61,679.40x = 5,220,908,324.46
  5. Step 5: Solve for x
    x = 5,220,908,324.46/61,679.40
  6. Step 6: Final answer
    x = 84,645.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.