Home / 76,830.96-106,068.48-53,085.26

Finding the Fourth Proportional to 76,830.96, 106,068.48 and 53,085.26

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Solution

The fourth proportional to 76,830.96, 106,068.48 and 53,085.26 is: 73,286.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,830.96 : 106,068.48 = 53,085.26 : x
  2. Step 2: Convert to fraction form
    76,830.96/106,068.48 = 53,085.26/x
  3. Step 3: Cross multiply
    76,830.96x = 106,068.48 × 53,085.26
  4. Step 4: Simplify right side
    76,830.96x = 5,630,672,838.60
  5. Step 5: Solve for x
    x = 5,630,672,838.60/76,830.96
  6. Step 6: Final answer
    x = 73,286.51

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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.