Home / 76,827.02-105,983.60-51,339.63

Finding the Fourth Proportional to 76,827.02, 105,983.60 and 51,339.63

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Solution

The fourth proportional to 76,827.02, 105,983.60 and 51,339.63 is: 70,823.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,827.02 : 105,983.60 = 51,339.63 : x
  2. Step 2: Convert to fraction form
    76,827.02/105,983.60 = 51,339.63/x
  3. Step 3: Cross multiply
    76,827.02x = 105,983.60 × 51,339.63
  4. Step 4: Simplify right side
    76,827.02x = 5,441,158,810.07
  5. Step 5: Solve for x
    x = 5,441,158,810.07/76,827.02
  6. Step 6: Final answer
    x = 70,823.50

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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.