Home / 78,898.14-118,348.26-26,307.65

Finding the Fourth Proportional to 78,898.14, 118,348.26 and 26,307.65

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Solution

The fourth proportional to 78,898.14, 118,348.26 and 26,307.65 is: 39,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,898.14 : 118,348.26 = 26,307.65 : x
  2. Step 2: Convert to fraction form
    78,898.14/118,348.26 = 26,307.65/x
  3. Step 3: Cross multiply
    78,898.14x = 118,348.26 × 26,307.65
  4. Step 4: Simplify right side
    78,898.14x = 3,113,464,602.19
  5. Step 5: Solve for x
    x = 3,113,464,602.19/78,898.14
  6. Step 6: Final answer
    x = 39,461.83

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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.