Home / 85,908.32-128,831.58-29,733.18

Finding the Fourth Proportional to 85,908.32, 128,831.58 and 29,733.18

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Solution

The fourth proportional to 85,908.32, 128,831.58 and 29,733.18 is: 44,589.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,908.32 : 128,831.58 = 29,733.18 : x
  2. Step 2: Convert to fraction form
    85,908.32/128,831.58 = 29,733.18/x
  3. Step 3: Cross multiply
    85,908.32x = 128,831.58 × 29,733.18
  4. Step 4: Simplify right side
    85,908.32x = 3,830,572,557.82
  5. Step 5: Solve for x
    x = 3,830,572,557.82/85,908.32
  6. Step 6: Final answer
    x = 44,589.08

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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.