Home / 76,635.06-105,756.46-42,646.64

Finding the Fourth Proportional to 76,635.06, 105,756.46 and 42,646.64

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Solution

The fourth proportional to 76,635.06, 105,756.46 and 42,646.64 is: 58,852.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,635.06 : 105,756.46 = 42,646.64 : x
  2. Step 2: Convert to fraction form
    76,635.06/105,756.46 = 42,646.64/x
  3. Step 3: Cross multiply
    76,635.06x = 105,756.46 × 42,646.64
  4. Step 4: Simplify right side
    76,635.06x = 4,510,157,677.29
  5. Step 5: Solve for x
    x = 4,510,157,677.29/76,635.06
  6. Step 6: Final answer
    x = 58,852.41

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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.