Home / 77,013.81-115,549.34-47,089.45

Finding the Fourth Proportional to 77,013.81, 115,549.34 and 47,089.45

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Solution

The fourth proportional to 77,013.81, 115,549.34 and 47,089.45 is: 70,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,013.81 : 115,549.34 = 47,089.45 : x
  2. Step 2: Convert to fraction form
    77,013.81/115,549.34 = 47,089.45/x
  3. Step 3: Cross multiply
    77,013.81x = 115,549.34 × 47,089.45
  4. Step 4: Simplify right side
    77,013.81x = 5,441,154,633.02
  5. Step 5: Solve for x
    x = 5,441,154,633.02/77,013.81
  6. Step 6: Final answer
    x = 70,651.67

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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.