Home / 64,771.07-89,382.65-36,090.72

Finding the Fourth Proportional to 64,771.07, 89,382.65 and 36,090.72

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Solution

The fourth proportional to 64,771.07, 89,382.65 and 36,090.72 is: 49,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,771.07 : 89,382.65 = 36,090.72 : x
  2. Step 2: Convert to fraction form
    64,771.07/89,382.65 = 36,090.72/x
  3. Step 3: Cross multiply
    64,771.07x = 89,382.65 × 36,090.72
  4. Step 4: Simplify right side
    64,771.07x = 3,225,884,013.55
  5. Step 5: Solve for x
    x = 3,225,884,013.55/64,771.07
  6. Step 6: Final answer
    x = 49,804.40

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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.