Home / 99,292.36-137,034.26-56,864.84

Finding the Fourth Proportional to 99,292.36, 137,034.26 and 56,864.84

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Solution

The fourth proportional to 99,292.36, 137,034.26 and 56,864.84 is: 78,479.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,292.36 : 137,034.26 = 56,864.84 : x
  2. Step 2: Convert to fraction form
    99,292.36/137,034.26 = 56,864.84/x
  3. Step 3: Cross multiply
    99,292.36x = 137,034.26 × 56,864.84
  4. Step 4: Simplify right side
    99,292.36x = 7,792,431,269.42
  5. Step 5: Solve for x
    x = 7,792,431,269.42/99,292.36
  6. Step 6: Final answer
    x = 78,479.67

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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.