Home / 92,831.36-128,071.40-52,535.88

Finding the Fourth Proportional to 92,831.36, 128,071.40 and 52,535.88

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Solution

The fourth proportional to 92,831.36, 128,071.40 and 52,535.88 is: 72,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,831.36 : 128,071.40 = 52,535.88 : x
  2. Step 2: Convert to fraction form
    92,831.36/128,071.40 = 52,535.88/x
  3. Step 3: Cross multiply
    92,831.36x = 128,071.40 × 52,535.88
  4. Step 4: Simplify right side
    92,831.36x = 6,728,343,439.15
  5. Step 5: Solve for x
    x = 6,728,343,439.15/92,831.36
  6. Step 6: Final answer
    x = 72,479.21

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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.