Home / 56,861.56-78,501.04-39,430.36

Finding the Fourth Proportional to 56,861.56, 78,501.04 and 39,430.36

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Solution

The fourth proportional to 56,861.56, 78,501.04 and 39,430.36 is: 54,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.56 : 78,501.04 = 39,430.36 : x
  2. Step 2: Convert to fraction form
    56,861.56/78,501.04 = 39,430.36/x
  3. Step 3: Cross multiply
    56,861.56x = 78,501.04 × 39,430.36
  4. Step 4: Simplify right side
    56,861.56x = 3,095,324,267.57
  5. Step 5: Solve for x
    x = 3,095,324,267.57/56,861.56
  6. Step 6: Final answer
    x = 54,436.15

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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.