Home / 59,423.16-89,135.46-19,980.12

Finding the Fourth Proportional to 59,423.16, 89,135.46 and 19,980.12

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Solution

The fourth proportional to 59,423.16, 89,135.46 and 19,980.12 is: 29,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,423.16 : 89,135.46 = 19,980.12 : x
  2. Step 2: Convert to fraction form
    59,423.16/89,135.46 = 19,980.12/x
  3. Step 3: Cross multiply
    59,423.16x = 89,135.46 × 19,980.12
  4. Step 4: Simplify right side
    59,423.16x = 1,780,937,187.06
  5. Step 5: Solve for x
    x = 1,780,937,187.06/59,423.16
  6. Step 6: Final answer
    x = 29,970.42

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Similar ratio
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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.