Home / 76,482.39-105,533.97-42,490.34

Finding the Fourth Proportional to 76,482.39, 105,533.97 and 42,490.34

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Solution

The fourth proportional to 76,482.39, 105,533.97 and 42,490.34 is: 58,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,482.39 : 105,533.97 = 42,490.34 : x
  2. Step 2: Convert to fraction form
    76,482.39/105,533.97 = 42,490.34/x
  3. Step 3: Cross multiply
    76,482.39x = 105,533.97 × 42,490.34
  4. Step 4: Simplify right side
    76,482.39x = 4,484,173,739.18
  5. Step 5: Solve for x
    x = 4,484,173,739.18/76,482.39
  6. Step 6: Final answer
    x = 58,630.15

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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.