Home / 78,853.10-118,298.57-26,263.06

Finding the Fourth Proportional to 78,853.10, 118,298.57 and 26,263.06

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Solution

The fourth proportional to 78,853.10, 118,298.57 and 26,263.06 is: 39,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,853.10 : 118,298.57 = 26,263.06 : x
  2. Step 2: Convert to fraction form
    78,853.10/118,298.57 = 26,263.06/x
  3. Step 3: Cross multiply
    78,853.10x = 118,298.57 × 26,263.06
  4. Step 4: Simplify right side
    78,853.10x = 3,106,882,441.82
  5. Step 5: Solve for x
    x = 3,106,882,441.82/78,853.10
  6. Step 6: Final answer
    x = 39,400.89

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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.