Home / 70,890.32-97,785.36-42,190.70

Finding the Fourth Proportional to 70,890.32, 97,785.36 and 42,190.70

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Solution

The fourth proportional to 70,890.32, 97,785.36 and 42,190.70 is: 58,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,890.32 : 97,785.36 = 42,190.70 : x
  2. Step 2: Convert to fraction form
    70,890.32/97,785.36 = 42,190.70/x
  3. Step 3: Cross multiply
    70,890.32x = 97,785.36 × 42,190.70
  4. Step 4: Simplify right side
    70,890.32x = 4,125,632,788.15
  5. Step 5: Solve for x
    x = 4,125,632,788.15/70,890.32
  6. Step 6: Final answer
    x = 58,197.41

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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.