Home / 76,113.37-105,038.16-49,302.55

Finding the Fourth Proportional to 76,113.37, 105,038.16 and 49,302.55

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Solution

The fourth proportional to 76,113.37, 105,038.16 and 49,302.55 is: 68,038.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,113.37 : 105,038.16 = 49,302.55 : x
  2. Step 2: Convert to fraction form
    76,113.37/105,038.16 = 49,302.55/x
  3. Step 3: Cross multiply
    76,113.37x = 105,038.16 × 49,302.55
  4. Step 4: Simplify right side
    76,113.37x = 5,178,648,610.12
  5. Step 5: Solve for x
    x = 5,178,648,610.12/76,113.37
  6. Step 6: Final answer
    x = 68,038.62

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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.