Home / 78,911.40-118,266.30-32,111.40

Finding the Fourth Proportional to 78,911.40, 118,266.30 and 32,111.40

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Solution

The fourth proportional to 78,911.40, 118,266.30 and 32,111.40 is: 48,126.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,911.40 : 118,266.30 = 32,111.40 : x
  2. Step 2: Convert to fraction form
    78,911.40/118,266.30 = 32,111.40/x
  3. Step 3: Cross multiply
    78,911.40x = 118,266.30 × 32,111.40
  4. Step 4: Simplify right side
    78,911.40x = 3,797,696,465.82
  5. Step 5: Solve for x
    x = 3,797,696,465.82/78,911.40
  6. Step 6: Final answer
    x = 48,126.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.