Home / 56,855.56-78,492.76-39,424.36

Finding the Fourth Proportional to 56,855.56, 78,492.76 and 39,424.36

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Solution

The fourth proportional to 56,855.56, 78,492.76 and 39,424.36 is: 54,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,855.56 : 78,492.76 = 39,424.36 : x
  2. Step 2: Convert to fraction form
    56,855.56/78,492.76 = 39,424.36/x
  3. Step 3: Cross multiply
    56,855.56x = 78,492.76 × 39,424.36
  4. Step 4: Simplify right side
    56,855.56x = 3,094,526,827.63
  5. Step 5: Solve for x
    x = 3,094,526,827.63/56,855.56
  6. Step 6: Final answer
    x = 54,427.87

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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.