Home / 76,181.36-105,130.04-42,647.36

Finding the Fourth Proportional to 76,181.36, 105,130.04 and 42,647.36

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Solution

The fourth proportional to 76,181.36, 105,130.04 and 42,647.36 is: 58,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,181.36 : 105,130.04 = 42,647.36 : x
  2. Step 2: Convert to fraction form
    76,181.36/105,130.04 = 42,647.36/x
  3. Step 3: Cross multiply
    76,181.36x = 105,130.04 × 42,647.36
  4. Step 4: Simplify right side
    76,181.36x = 4,483,517,923.81
  5. Step 5: Solve for x
    x = 4,483,517,923.81/76,181.36
  6. Step 6: Final answer
    x = 58,853.22

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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.