Home / 73,831.72-101,890.04-42,005.20

Finding the Fourth Proportional to 73,831.72, 101,890.04 and 42,005.20

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Solution

The fourth proportional to 73,831.72, 101,890.04 and 42,005.20 is: 57,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,831.72 : 101,890.04 = 42,005.20 : x
  2. Step 2: Convert to fraction form
    73,831.72/101,890.04 = 42,005.20/x
  3. Step 3: Cross multiply
    73,831.72x = 101,890.04 × 42,005.20
  4. Step 4: Simplify right side
    73,831.72x = 4,279,911,508.21
  5. Step 5: Solve for x
    x = 4,279,911,508.21/73,831.72
  6. Step 6: Final answer
    x = 57,968.47

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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.