Home / 55,188.32-76,088.72-40,102.88

Finding the Fourth Proportional to 55,188.32, 76,088.72 and 40,102.88

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Solution

The fourth proportional to 55,188.32, 76,088.72 and 40,102.88 is: 55,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,188.32 : 76,088.72 = 40,102.88 : x
  2. Step 2: Convert to fraction form
    55,188.32/76,088.72 = 40,102.88/x
  3. Step 3: Cross multiply
    55,188.32x = 76,088.72 × 40,102.88
  4. Step 4: Simplify right side
    55,188.32x = 3,051,376,807.51
  5. Step 5: Solve for x
    x = 3,051,376,807.51/55,188.32
  6. Step 6: Final answer
    x = 55,290.26

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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.