Home / 76,747.02-105,909.28-42,755.46

Finding the Fourth Proportional to 76,747.02, 105,909.28 and 42,755.46

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Solution

The fourth proportional to 76,747.02, 105,909.28 and 42,755.46 is: 59,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,747.02 : 105,909.28 = 42,755.46 : x
  2. Step 2: Convert to fraction form
    76,747.02/105,909.28 = 42,755.46/x
  3. Step 3: Cross multiply
    76,747.02x = 105,909.28 × 42,755.46
  4. Step 4: Simplify right side
    76,747.02x = 4,528,199,984.67
  5. Step 5: Solve for x
    x = 4,528,199,984.67/76,747.02
  6. Step 6: Final answer
    x = 59,001.64

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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.