Home / 58,723.95-81,038.64-31,865.78

Finding the Fourth Proportional to 58,723.95, 81,038.64 and 31,865.78

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Solution

The fourth proportional to 58,723.95, 81,038.64 and 31,865.78 is: 43,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,723.95 : 81,038.64 = 31,865.78 : x
  2. Step 2: Convert to fraction form
    58,723.95/81,038.64 = 31,865.78/x
  3. Step 3: Cross multiply
    58,723.95x = 81,038.64 × 31,865.78
  4. Step 4: Simplify right side
    58,723.95x = 2,582,359,068.55
  5. Step 5: Solve for x
    x = 2,582,359,068.55/58,723.95
  6. Step 6: Final answer
    x = 43,974.55

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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.