Home / 86,980.23-119,950.07-56,755.89

Finding the Fourth Proportional to 86,980.23, 119,950.07 and 56,755.89

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Solution

The fourth proportional to 86,980.23, 119,950.07 and 56,755.89 is: 78,269.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,980.23 : 119,950.07 = 56,755.89 : x
  2. Step 2: Convert to fraction form
    86,980.23/119,950.07 = 56,755.89/x
  3. Step 3: Cross multiply
    86,980.23x = 119,950.07 × 56,755.89
  4. Step 4: Simplify right side
    86,980.23x = 6,807,872,694.63
  5. Step 5: Solve for x
    x = 6,807,872,694.63/86,980.23
  6. Step 6: Final answer
    x = 78,269.20

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1.5x scale

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.