Home / 76,688.07-115,038.25-26,767.06

Finding the Fourth Proportional to 76,688.07, 115,038.25 and 26,767.06

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Solution

The fourth proportional to 76,688.07, 115,038.25 and 26,767.06 is: 40,152.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,688.07 : 115,038.25 = 26,767.06 : x
  2. Step 2: Convert to fraction form
    76,688.07/115,038.25 = 26,767.06/x
  3. Step 3: Cross multiply
    76,688.07x = 115,038.25 × 26,767.06
  4. Step 4: Simplify right side
    76,688.07x = 3,079,235,460.81
  5. Step 5: Solve for x
    x = 3,079,235,460.81/76,688.07
  6. Step 6: Final answer
    x = 40,152.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.