Home / 72,636.38-100,237.60-40,804.59

Finding the Fourth Proportional to 72,636.38, 100,237.60 and 40,804.59

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Solution

The fourth proportional to 72,636.38, 100,237.60 and 40,804.59 is: 56,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,636.38 : 100,237.60 = 40,804.59 : x
  2. Step 2: Convert to fraction form
    72,636.38/100,237.60 = 40,804.59/x
  3. Step 3: Cross multiply
    72,636.38x = 100,237.60 × 40,804.59
  4. Step 4: Simplify right side
    72,636.38x = 4,090,154,597.48
  5. Step 5: Solve for x
    x = 4,090,154,597.48/72,636.38
  6. Step 6: Final answer
    x = 56,310.00

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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.