Home / 74,519.60-102,834.96-40,985.60

Finding the Fourth Proportional to 74,519.60, 102,834.96 and 40,985.60

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Solution

The fourth proportional to 74,519.60, 102,834.96 and 40,985.60 is: 56,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,519.60 : 102,834.96 = 40,985.60 : x
  2. Step 2: Convert to fraction form
    74,519.60/102,834.96 = 40,985.60/x
  3. Step 3: Cross multiply
    74,519.60x = 102,834.96 × 40,985.60
  4. Step 4: Simplify right side
    74,519.60x = 4,214,752,536.58
  5. Step 5: Solve for x
    x = 4,214,752,536.58/74,519.60
  6. Step 6: Final answer
    x = 56,558.98

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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.