Home / 55,063.32-75,987.18-31,187.64

Finding the Fourth Proportional to 55,063.32, 75,987.18 and 31,187.64

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Solution

The fourth proportional to 55,063.32, 75,987.18 and 31,187.64 is: 43,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,063.32 : 75,987.18 = 31,187.64 : x
  2. Step 2: Convert to fraction form
    55,063.32/75,987.18 = 31,187.64/x
  3. Step 3: Cross multiply
    55,063.32x = 75,987.18 × 31,187.64
  4. Step 4: Simplify right side
    55,063.32x = 2,369,860,814.46
  5. Step 5: Solve for x
    x = 2,369,860,814.46/55,063.32
  6. Step 6: Final answer
    x = 43,038.83

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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.