Home / 86,424.20-119,320.45-70,546.40

Finding the Fourth Proportional to 86,424.20, 119,320.45 and 70,546.40

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Solution

The fourth proportional to 86,424.20, 119,320.45 and 70,546.40 is: 97,398.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,424.20 : 119,320.45 = 70,546.40 : x
  2. Step 2: Convert to fraction form
    86,424.20/119,320.45 = 70,546.40/x
  3. Step 3: Cross multiply
    86,424.20x = 119,320.45 × 70,546.40
  4. Step 4: Simplify right side
    86,424.20x = 8,417,628,193.88
  5. Step 5: Solve for x
    x = 8,417,628,193.88/86,424.20
  6. Step 6: Final answer
    x = 97,398.97

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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.