Home / 63,106.76-87,088.40-40,789.64

Finding the Fourth Proportional to 63,106.76, 87,088.40 and 40,789.64

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Solution

The fourth proportional to 63,106.76, 87,088.40 and 40,789.64 is: 56,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,106.76 : 87,088.40 = 40,789.64 : x
  2. Step 2: Convert to fraction form
    63,106.76/87,088.40 = 40,789.64/x
  3. Step 3: Cross multiply
    63,106.76x = 87,088.40 × 40,789.64
  4. Step 4: Simplify right side
    63,106.76x = 3,552,304,484.18
  5. Step 5: Solve for x
    x = 3,552,304,484.18/63,106.76
  6. Step 6: Final answer
    x = 56,290.40

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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.