Home / 76,771.52-105,946.08-43,238.72

Finding the Fourth Proportional to 76,771.52, 105,946.08 and 43,238.72

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Solution

The fourth proportional to 76,771.52, 105,946.08 and 43,238.72 is: 59,670.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,771.52 : 105,946.08 = 43,238.72 : x
  2. Step 2: Convert to fraction form
    76,771.52/105,946.08 = 43,238.72/x
  3. Step 3: Cross multiply
    76,771.52x = 105,946.08 × 43,238.72
  4. Step 4: Simplify right side
    76,771.52x = 4,580,972,888.22
  5. Step 5: Solve for x
    x = 4,580,972,888.22/76,771.52
  6. Step 6: Final answer
    x = 59,670.21

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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.