Home / 77,307.48-115,990.38-27,385.56

Finding the Fourth Proportional to 77,307.48, 115,990.38 and 27,385.56

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Solution

The fourth proportional to 77,307.48, 115,990.38 and 27,385.56 is: 41,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,307.48 : 115,990.38 = 27,385.56 : x
  2. Step 2: Convert to fraction form
    77,307.48/115,990.38 = 27,385.56/x
  3. Step 3: Cross multiply
    77,307.48x = 115,990.38 × 27,385.56
  4. Step 4: Simplify right side
    77,307.48x = 3,176,461,510.91
  5. Step 5: Solve for x
    x = 3,176,461,510.91/77,307.48
  6. Step 6: Final answer
    x = 41,088.67

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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.