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Finding the Fourth Proportional to 78,897.65, 118,347.41 and 26,307.11

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Solution

The fourth proportional to 78,897.65, 118,347.41 and 26,307.11 is: 39,460.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897.65 : 118,347.41 = 26,307.11 : x
  2. Step 2: Convert to fraction form
    78,897.65/118,347.41 = 26,307.11/x
  3. Step 3: Cross multiply
    78,897.65x = 118,347.41 × 26,307.11
  4. Step 4: Simplify right side
    78,897.65x = 3,113,378,694.72
  5. Step 5: Solve for x
    x = 3,113,378,694.72/78,897.65
  6. Step 6: Final answer
    x = 39,460.98

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1.5x scale

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.