Home / 79,579.12-119,138.28-59,940.40

Finding the Fourth Proportional to 79,579.12, 119,138.28 and 59,940.40

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Solution

The fourth proportional to 79,579.12, 119,138.28 and 59,940.40 is: 89,737.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,579.12 : 119,138.28 = 59,940.40 : x
  2. Step 2: Convert to fraction form
    79,579.12/119,138.28 = 59,940.40/x
  3. Step 3: Cross multiply
    79,579.12x = 119,138.28 × 59,940.40
  4. Step 4: Simplify right side
    79,579.12x = 7,141,196,158.51
  5. Step 5: Solve for x
    x = 7,141,196,158.51/79,579.12
  6. Step 6: Final answer
    x = 89,737.06

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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.