Home / 56,619.23-78,135.51-31,126.67

Finding the Fourth Proportional to 56,619.23, 78,135.51 and 31,126.67

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Solution

The fourth proportional to 56,619.23, 78,135.51 and 31,126.67 is: 42,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,619.23 : 78,135.51 = 31,126.67 : x
  2. Step 2: Convert to fraction form
    56,619.23/78,135.51 = 31,126.67/x
  3. Step 3: Cross multiply
    56,619.23x = 78,135.51 × 31,126.67
  4. Step 4: Simplify right side
    56,619.23x = 2,432,097,844.37
  5. Step 5: Solve for x
    x = 2,432,097,844.37/56,619.23
  6. Step 6: Final answer
    x = 42,955.33

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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.