Home / 76,476.65-105,576.14-47,812.23

Finding the Fourth Proportional to 76,476.65, 105,576.14 and 47,812.23

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Solution

The fourth proportional to 76,476.65, 105,576.14 and 47,812.23 is: 66,004.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,476.65 : 105,576.14 = 47,812.23 : x
  2. Step 2: Convert to fraction form
    76,476.65/105,576.14 = 47,812.23/x
  3. Step 3: Cross multiply
    76,476.65x = 105,576.14 × 47,812.23
  4. Step 4: Simplify right side
    76,476.65x = 5,047,830,807.72
  5. Step 5: Solve for x
    x = 5,047,830,807.72/76,476.65
  6. Step 6: Final answer
    x = 66,004.87

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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.