Home / 70,130.36-96,781.14-42,910.98

Finding the Fourth Proportional to 70,130.36, 96,781.14 and 42,910.98

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Solution

The fourth proportional to 70,130.36, 96,781.14 and 42,910.98 is: 59,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,130.36 : 96,781.14 = 42,910.98 : x
  2. Step 2: Convert to fraction form
    70,130.36/96,781.14 = 42,910.98/x
  3. Step 3: Cross multiply
    70,130.36x = 96,781.14 × 42,910.98
  4. Step 4: Simplify right side
    70,130.36x = 4,152,973,562.92
  5. Step 5: Solve for x
    x = 4,152,973,562.92/70,130.36
  6. Step 6: Final answer
    x = 59,217.91

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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.