Home / 56,729.16-78,280.83-31,235.22

Finding the Fourth Proportional to 56,729.16, 78,280.83 and 31,235.22

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Solution

The fourth proportional to 56,729.16, 78,280.83 and 31,235.22 is: 43,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,729.16 : 78,280.83 = 31,235.22 : x
  2. Step 2: Convert to fraction form
    56,729.16/78,280.83 = 31,235.22/x
  3. Step 3: Cross multiply
    56,729.16x = 78,280.83 × 31,235.22
  4. Step 4: Simplify right side
    56,729.16x = 2,445,118,946.83
  5. Step 5: Solve for x
    x = 2,445,118,946.83/56,729.16
  6. Step 6: Final answer
    x = 43,101.62

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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.