Home / 85,089.30-117,421.29-53,275.74

Finding the Fourth Proportional to 85,089.30, 117,421.29 and 53,275.74

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Solution

The fourth proportional to 85,089.30, 117,421.29 and 53,275.74 is: 73,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,089.30 : 117,421.29 = 53,275.74 : x
  2. Step 2: Convert to fraction form
    85,089.30/117,421.29 = 53,275.74/x
  3. Step 3: Cross multiply
    85,089.30x = 117,421.29 × 53,275.74
  4. Step 4: Simplify right side
    85,089.30x = 6,255,706,116.50
  5. Step 5: Solve for x
    x = 6,255,706,116.50/85,089.30
  6. Step 6: Final answer
    x = 73,519.30

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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.