Home / 78,925.60-109,009.76-62,846.72

Finding the Fourth Proportional to 78,925.60, 109,009.76 and 62,846.72

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Solution

The fourth proportional to 78,925.60, 109,009.76 and 62,846.72 is: 86,802.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,925.60 : 109,009.76 = 62,846.72 : x
  2. Step 2: Convert to fraction form
    78,925.60/109,009.76 = 62,846.72/x
  3. Step 3: Cross multiply
    78,925.60x = 109,009.76 × 62,846.72
  4. Step 4: Simplify right side
    78,925.60x = 6,850,905,863.99
  5. Step 5: Solve for x
    x = 6,850,905,863.99/78,925.60
  6. Step 6: Final answer
    x = 86,802.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.