Home / 56,708.13-78,281.46-40,365.98

Finding the Fourth Proportional to 56,708.13, 78,281.46 and 40,365.98

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Solution

The fourth proportional to 56,708.13, 78,281.46 and 40,365.98 is: 55,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,708.13 : 78,281.46 = 40,365.98 : x
  2. Step 2: Convert to fraction form
    56,708.13/78,281.46 = 40,365.98/x
  3. Step 3: Cross multiply
    56,708.13x = 78,281.46 × 40,365.98
  4. Step 4: Simplify right side
    56,708.13x = 3,159,907,457.32
  5. Step 5: Solve for x
    x = 3,159,907,457.32/56,708.13
  6. Step 6: Final answer
    x = 55,722.30

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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.