Home / 76,307.37-105,356.33-47,670.63

Finding the Fourth Proportional to 76,307.37, 105,356.33 and 47,670.63

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Solution

The fourth proportional to 76,307.37, 105,356.33 and 47,670.63 is: 65,818.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,307.37 : 105,356.33 = 47,670.63 : x
  2. Step 2: Convert to fraction form
    76,307.37/105,356.33 = 47,670.63/x
  3. Step 3: Cross multiply
    76,307.37x = 105,356.33 × 47,670.63
  4. Step 4: Simplify right side
    76,307.37x = 5,022,402,170.91
  5. Step 5: Solve for x
    x = 5,022,402,170.91/76,307.37
  6. Step 6: Final answer
    x = 65,818.05

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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.