Home / 78,897.64-118,347.51-26,307.15

Finding the Fourth Proportional to 78,897.64, 118,347.51 and 26,307.15

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Solution

The fourth proportional to 78,897.64, 118,347.51 and 26,307.15 is: 39,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897.64 : 118,347.51 = 26,307.15 : x
  2. Step 2: Convert to fraction form
    78,897.64/118,347.51 = 26,307.15/x
  3. Step 3: Cross multiply
    78,897.64x = 118,347.51 × 26,307.15
  4. Step 4: Simplify right side
    78,897.64x = 3,113,385,697.70
  5. Step 5: Solve for x
    x = 3,113,385,697.70/78,897.64
  6. Step 6: Final answer
    x = 39,461.08

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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.