Home / 76,647.10-105,743.64-56,551.93

Finding the Fourth Proportional to 76,647.10, 105,743.64 and 56,551.93

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Solution

The fourth proportional to 76,647.10, 105,743.64 and 56,551.93 is: 78,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,647.10 : 105,743.64 = 56,551.93 : x
  2. Step 2: Convert to fraction form
    76,647.10/105,743.64 = 56,551.93/x
  3. Step 3: Cross multiply
    76,647.10x = 105,743.64 × 56,551.93
  4. Step 4: Simplify right side
    76,647.10x = 5,980,006,927.23
  5. Step 5: Solve for x
    x = 5,980,006,927.23/76,647.10
  6. Step 6: Final answer
    x = 78,020.00

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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.