Home / 51,545.56-77,669.51-42,390.67

Finding the Fourth Proportional to 51,545.56, 77,669.51 and 42,390.67

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Solution

The fourth proportional to 51,545.56, 77,669.51 and 42,390.67 is: 63,874.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,545.56 : 77,669.51 = 42,390.67 : x
  2. Step 2: Convert to fraction form
    51,545.56/77,669.51 = 42,390.67/x
  3. Step 3: Cross multiply
    51,545.56x = 77,669.51 × 42,390.67
  4. Step 4: Simplify right side
    51,545.56x = 3,292,462,567.47
  5. Step 5: Solve for x
    x = 3,292,462,567.47/51,545.56
  6. Step 6: Final answer
    x = 63,874.80

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.