Home / 76,574.16-114,870.12-20,415.04

Finding the Fourth Proportional to 76,574.16, 114,870.12 and 20,415.04

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Solution

The fourth proportional to 76,574.16, 114,870.12 and 20,415.04 is: 30,624.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,574.16 : 114,870.12 = 20,415.04 : x
  2. Step 2: Convert to fraction form
    76,574.16/114,870.12 = 20,415.04/x
  3. Step 3: Cross multiply
    76,574.16x = 114,870.12 × 20,415.04
  4. Step 4: Simplify right side
    76,574.16x = 2,345,078,094.60
  5. Step 5: Solve for x
    x = 2,345,078,094.60/76,574.16
  6. Step 6: Final answer
    x = 30,624.93

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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.