Home / 67,831.40-101,747.10-28,384.40

Finding the Fourth Proportional to 67,831.40, 101,747.10 and 28,384.40

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Solution

The fourth proportional to 67,831.40, 101,747.10 and 28,384.40 is: 42,576.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,831.40 : 101,747.10 = 28,384.40 : x
  2. Step 2: Convert to fraction form
    67,831.40/101,747.10 = 28,384.40/x
  3. Step 3: Cross multiply
    67,831.40x = 101,747.10 × 28,384.40
  4. Step 4: Simplify right side
    67,831.40x = 2,888,030,385.24
  5. Step 5: Solve for x
    x = 2,888,030,385.24/67,831.40
  6. Step 6: Final answer
    x = 42,576.60

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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.