Home / 56,861.20-78,467.76-31,368.63

Finding the Fourth Proportional to 56,861.20, 78,467.76 and 31,368.63

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Solution

The fourth proportional to 56,861.20, 78,467.76 and 31,368.63 is: 43,288.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.20 : 78,467.76 = 31,368.63 : x
  2. Step 2: Convert to fraction form
    56,861.20/78,467.76 = 31,368.63/x
  3. Step 3: Cross multiply
    56,861.20x = 78,467.76 × 31,368.63
  4. Step 4: Simplify right side
    56,861.20x = 2,461,426,130.37
  5. Step 5: Solve for x
    x = 2,461,426,130.37/56,861.20
  6. Step 6: Final answer
    x = 43,288.33

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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.