Home / 76,071.75-104,977.08-42,081.63

Finding the Fourth Proportional to 76,071.75, 104,977.08 and 42,081.63

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Solution

The fourth proportional to 76,071.75, 104,977.08 and 42,081.63 is: 58,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,071.75 : 104,977.08 = 42,081.63 : x
  2. Step 2: Convert to fraction form
    76,071.75/104,977.08 = 42,081.63/x
  3. Step 3: Cross multiply
    76,071.75x = 104,977.08 × 42,081.63
  4. Step 4: Simplify right side
    76,071.75x = 4,417,606,639.04
  5. Step 5: Solve for x
    x = 4,417,606,639.04/76,071.75
  6. Step 6: Final answer
    x = 58,071.58

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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.