Home / 78,985.27-118,484.01-26,394.94

Finding the Fourth Proportional to 78,985.27, 118,484.01 and 26,394.94

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Solution

The fourth proportional to 78,985.27, 118,484.01 and 26,394.94 is: 39,594.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,985.27 : 118,484.01 = 26,394.94 : x
  2. Step 2: Convert to fraction form
    78,985.27/118,484.01 = 26,394.94/x
  3. Step 3: Cross multiply
    78,985.27x = 118,484.01 × 26,394.94
  4. Step 4: Simplify right side
    78,985.27x = 3,127,378,334.91
  5. Step 5: Solve for x
    x = 3,127,378,334.91/78,985.27
  6. Step 6: Final answer
    x = 39,594.45

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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.