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Finding the Fourth Proportional to 64,505.58, 89,017.35 and 36,211.26

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Solution

The fourth proportional to 64,505.58, 89,017.35 and 36,211.26 is: 49,971.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,505.58 : 89,017.35 = 36,211.26 : x
  2. Step 2: Convert to fraction form
    64,505.58/89,017.35 = 36,211.26/x
  3. Step 3: Cross multiply
    64,505.58x = 89,017.35 × 36,211.26
  4. Step 4: Simplify right side
    64,505.58x = 3,223,430,405.36
  5. Step 5: Solve for x
    x = 3,223,430,405.36/64,505.58
  6. Step 6: Final answer
    x = 49,971.34

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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.