Home / 86,853.12-130,184.10-56,831.28

Finding the Fourth Proportional to 86,853.12, 130,184.10 and 56,831.28

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Solution

The fourth proportional to 86,853.12, 130,184.10 and 56,831.28 is: 85,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,853.12 : 130,184.10 = 56,831.28 : x
  2. Step 2: Convert to fraction form
    86,853.12/130,184.10 = 56,831.28/x
  3. Step 3: Cross multiply
    86,853.12x = 130,184.10 × 56,831.28
  4. Step 4: Simplify right side
    86,853.12x = 7,398,529,038.65
  5. Step 5: Solve for x
    x = 7,398,529,038.65/86,853.12
  6. Step 6: Final answer
    x = 85,184.38

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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.