Home / 56,421.05-77,913.71-36,312.95

Finding the Fourth Proportional to 56,421.05, 77,913.71 and 36,312.95

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Solution

The fourth proportional to 56,421.05, 77,913.71 and 36,312.95 is: 50,145.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,421.05 : 77,913.71 = 36,312.95 : x
  2. Step 2: Convert to fraction form
    56,421.05/77,913.71 = 36,312.95/x
  3. Step 3: Cross multiply
    56,421.05x = 77,913.71 × 36,312.95
  4. Step 4: Simplify right side
    56,421.05x = 2,829,276,265.98
  5. Step 5: Solve for x
    x = 2,829,276,265.98/56,421.05
  6. Step 6: Final answer
    x = 50,145.76

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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.