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Finding the Fourth Proportional to 64,135.72, 88,532.04 and 57,409.48

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Solution

The fourth proportional to 64,135.72, 88,532.04 and 57,409.48 is: 79,247.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,135.72 : 88,532.04 = 57,409.48 : x
  2. Step 2: Convert to fraction form
    64,135.72/88,532.04 = 57,409.48/x
  3. Step 3: Cross multiply
    64,135.72x = 88,532.04 × 57,409.48
  4. Step 4: Simplify right side
    64,135.72x = 5,082,578,379.74
  5. Step 5: Solve for x
    x = 5,082,578,379.74/64,135.72
  6. Step 6: Final answer
    x = 79,247.23

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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.