Home / 77,088.10-115,718.55-59,635.30

Finding the Fourth Proportional to 77,088.10, 115,718.55 and 59,635.30

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Solution

The fourth proportional to 77,088.10, 115,718.55 and 59,635.30 is: 89,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,088.10 : 115,718.55 = 59,635.30 : x
  2. Step 2: Convert to fraction form
    77,088.10/115,718.55 = 59,635.30/x
  3. Step 3: Cross multiply
    77,088.10x = 115,718.55 × 59,635.30
  4. Step 4: Simplify right side
    77,088.10x = 6,900,910,444.82
  5. Step 5: Solve for x
    x = 6,900,910,444.82/77,088.10
  6. Step 6: Final answer
    x = 89,519.79

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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.