Home / 64,771.19-89,382.90-36,090.74

Finding the Fourth Proportional to 64,771.19, 89,382.90 and 36,090.74

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Solution

The fourth proportional to 64,771.19, 89,382.90 and 36,090.74 is: 49,804.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,771.19 : 89,382.90 = 36,090.74 : x
  2. Step 2: Convert to fraction form
    64,771.19/89,382.90 = 36,090.74/x
  3. Step 3: Cross multiply
    64,771.19x = 89,382.90 × 36,090.74
  4. Step 4: Simplify right side
    64,771.19x = 3,225,895,004.35
  5. Step 5: Solve for x
    x = 3,225,895,004.35/64,771.19
  6. Step 6: Final answer
    x = 49,804.47

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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.