Home / 76,531.77-105,611.70-42,539.37

Finding the Fourth Proportional to 76,531.77, 105,611.70 and 42,539.37

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Solution

The fourth proportional to 76,531.77, 105,611.70 and 42,539.37 is: 58,703.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,531.77 : 105,611.70 = 42,539.37 : x
  2. Step 2: Convert to fraction form
    76,531.77/105,611.70 = 42,539.37/x
  3. Step 3: Cross multiply
    76,531.77x = 105,611.70 × 42,539.37
  4. Step 4: Simplify right side
    76,531.77x = 4,492,655,182.63
  5. Step 5: Solve for x
    x = 4,492,655,182.63/76,531.77
  6. Step 6: Final answer
    x = 58,703.14

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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.