Home / 56,814.99-78,405.08-31,666.11

Finding the Fourth Proportional to 56,814.99, 78,405.08 and 31,666.11

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Solution

The fourth proportional to 56,814.99, 78,405.08 and 31,666.11 is: 43,699.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,814.99 : 78,405.08 = 31,666.11 : x
  2. Step 2: Convert to fraction form
    56,814.99/78,405.08 = 31,666.11/x
  3. Step 3: Cross multiply
    56,814.99x = 78,405.08 × 31,666.11
  4. Step 4: Simplify right side
    56,814.99x = 2,482,783,729.51
  5. Step 5: Solve for x
    x = 2,482,783,729.51/56,814.99
  6. Step 6: Final answer
    x = 43,699.45

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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.