Home / 70,529.16-97,336.40-38,704.28

Finding the Fourth Proportional to 70,529.16, 97,336.40 and 38,704.28

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Solution

The fourth proportional to 70,529.16, 97,336.40 and 38,704.28 is: 53,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,529.16 : 97,336.40 = 38,704.28 : x
  2. Step 2: Convert to fraction form
    70,529.16/97,336.40 = 38,704.28/x
  3. Step 3: Cross multiply
    70,529.16x = 97,336.40 × 38,704.28
  4. Step 4: Simplify right side
    70,529.16x = 3,767,335,279.79
  5. Step 5: Solve for x
    x = 3,767,335,279.79/70,529.16
  6. Step 6: Final answer
    x = 53,415.29

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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.