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Finding the Fourth Proportional to 77,346.40, 116,003.40 and 37,931.80

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Solution

The fourth proportional to 77,346.40, 116,003.40 and 37,931.80 is: 56,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,346.40 : 116,003.40 = 37,931.80 : x
  2. Step 2: Convert to fraction form
    77,346.40/116,003.40 = 37,931.80/x
  3. Step 3: Cross multiply
    77,346.40x = 116,003.40 × 37,931.80
  4. Step 4: Simplify right side
    77,346.40x = 4,400,217,768.12
  5. Step 5: Solve for x
    x = 4,400,217,768.12/77,346.40
  6. Step 6: Final answer
    x = 56,889.76

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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.