Home / 51,050.24-70,438.50-30,903.20

Finding the Fourth Proportional to 51,050.24, 70,438.50 and 30,903.20

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Solution

The fourth proportional to 51,050.24, 70,438.50 and 30,903.20 is: 42,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,050.24 : 70,438.50 = 30,903.20 : x
  2. Step 2: Convert to fraction form
    51,050.24/70,438.50 = 30,903.20/x
  3. Step 3: Cross multiply
    51,050.24x = 70,438.50 × 30,903.20
  4. Step 4: Simplify right side
    51,050.24x = 2,176,775,053.20
  5. Step 5: Solve for x
    x = 2,176,775,053.20/51,050.24
  6. Step 6: Final answer
    x = 42,639.86

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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.