Home / 76,386.50-105,426.05-44,555.40

Finding the Fourth Proportional to 76,386.50, 105,426.05 and 44,555.40

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Solution

The fourth proportional to 76,386.50, 105,426.05 and 44,555.40 is: 61,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,386.50 : 105,426.05 = 44,555.40 : x
  2. Step 2: Convert to fraction form
    76,386.50/105,426.05 = 44,555.40/x
  3. Step 3: Cross multiply
    76,386.50x = 105,426.05 × 44,555.40
  4. Step 4: Simplify right side
    76,386.50x = 4,697,299,828.17
  5. Step 5: Solve for x
    x = 4,697,299,828.17/76,386.50
  6. Step 6: Final answer
    x = 61,493.85

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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.