Home / 76,825.02-105,980.84-51,337.63

Finding the Fourth Proportional to 76,825.02, 105,980.84 and 51,337.63

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Solution

The fourth proportional to 76,825.02, 105,980.84 and 51,337.63 is: 70,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,825.02 : 105,980.84 = 51,337.63 : x
  2. Step 2: Convert to fraction form
    76,825.02/105,980.84 = 51,337.63/x
  3. Step 3: Cross multiply
    76,825.02x = 105,980.84 × 51,337.63
  4. Step 4: Simplify right side
    76,825.02x = 5,440,805,219.31
  5. Step 5: Solve for x
    x = 5,440,805,219.31/76,825.02
  6. Step 6: Final answer
    x = 70,820.74

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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.