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Finding the Fourth Proportional to 64,859.20, 97,288.80 and 37,134.40

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Solution

The fourth proportional to 64,859.20, 97,288.80 and 37,134.40 is: 55,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,859.20 : 97,288.80 = 37,134.40 : x
  2. Step 2: Convert to fraction form
    64,859.20/97,288.80 = 37,134.40/x
  3. Step 3: Cross multiply
    64,859.20x = 97,288.80 × 37,134.40
  4. Step 4: Simplify right side
    64,859.20x = 3,612,761,214.72
  5. Step 5: Solve for x
    x = 3,612,761,214.72/64,859.20
  6. Step 6: Final answer
    x = 55,701.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.