Home / 55,841.58-83,688.48-40,980.78

Finding the Fourth Proportional to 55,841.58, 83,688.48 and 40,980.78

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Solution

The fourth proportional to 55,841.58, 83,688.48 and 40,980.78 is: 61,416.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,841.58 : 83,688.48 = 40,980.78 : x
  2. Step 2: Convert to fraction form
    55,841.58/83,688.48 = 40,980.78/x
  3. Step 3: Cross multiply
    55,841.58x = 83,688.48 × 40,980.78
  4. Step 4: Simplify right side
    55,841.58x = 3,429,619,187.41
  5. Step 5: Solve for x
    x = 3,429,619,187.41/55,841.58
  6. Step 6: Final answer
    x = 61,416.94

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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.