Home / 94,031.66-129,729.63-61,783.64

Finding the Fourth Proportional to 94,031.66, 129,729.63 and 61,783.64

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Solution

The fourth proportional to 94,031.66, 129,729.63 and 61,783.64 is: 85,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,031.66 : 129,729.63 = 61,783.64 : x
  2. Step 2: Convert to fraction form
    94,031.66/129,729.63 = 61,783.64/x
  3. Step 3: Cross multiply
    94,031.66x = 129,729.63 × 61,783.64
  4. Step 4: Simplify right side
    94,031.66x = 8,015,169,081.58
  5. Step 5: Solve for x
    x = 8,015,169,081.58/94,031.66
  6. Step 6: Final answer
    x = 85,239.05

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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.