Home / 76,300.02-114,447.60-20,138.40

Finding the Fourth Proportional to 76,300.02, 114,447.60 and 20,138.40

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Solution

The fourth proportional to 76,300.02, 114,447.60 and 20,138.40 is: 30,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,300.02 : 114,447.60 = 20,138.40 : x
  2. Step 2: Convert to fraction form
    76,300.02/114,447.60 = 20,138.40/x
  3. Step 3: Cross multiply
    76,300.02x = 114,447.60 × 20,138.40
  4. Step 4: Simplify right side
    76,300.02x = 2,304,791,547.84
  5. Step 5: Solve for x
    x = 2,304,791,547.84/76,300.02
  6. Step 6: Final answer
    x = 30,206.96

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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.