Home / 56,871.29-78,482.16-31,379.24

Finding the Fourth Proportional to 56,871.29, 78,482.16 and 31,379.24

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Solution

The fourth proportional to 56,871.29, 78,482.16 and 31,379.24 is: 43,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,871.29 : 78,482.16 = 31,379.24 : x
  2. Step 2: Convert to fraction form
    56,871.29/78,482.16 = 31,379.24/x
  3. Step 3: Cross multiply
    56,871.29x = 78,482.16 × 31,379.24
  4. Step 4: Simplify right side
    56,871.29x = 2,462,710,862.98
  5. Step 5: Solve for x
    x = 2,462,710,862.98/56,871.29
  6. Step 6: Final answer
    x = 43,303.23

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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.