Home / 92,831.02-128,106.90-50,389.54

Finding the Fourth Proportional to 92,831.02, 128,106.90 and 50,389.54

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Solution

The fourth proportional to 92,831.02, 128,106.90 and 50,389.54 is: 69,537.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,831.02 : 128,106.90 = 50,389.54 : x
  2. Step 2: Convert to fraction form
    92,831.02/128,106.90 = 50,389.54/x
  3. Step 3: Cross multiply
    92,831.02x = 128,106.90 × 50,389.54
  4. Step 4: Simplify right side
    92,831.02x = 6,455,247,761.83
  5. Step 5: Solve for x
    x = 6,455,247,761.83/92,831.02
  6. Step 6: Final answer
    x = 69,537.62

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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.