Home / 56,999.19-78,659.13-31,158.26

Finding the Fourth Proportional to 56,999.19, 78,659.13 and 31,158.26

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Solution

The fourth proportional to 56,999.19, 78,659.13 and 31,158.26 is: 42,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,999.19 : 78,659.13 = 31,158.26 : x
  2. Step 2: Convert to fraction form
    56,999.19/78,659.13 = 31,158.26/x
  3. Step 3: Cross multiply
    56,999.19x = 78,659.13 × 31,158.26
  4. Step 4: Simplify right side
    56,999.19x = 2,450,881,623.91
  5. Step 5: Solve for x
    x = 2,450,881,623.91/56,999.19
  6. Step 6: Final answer
    x = 42,998.53

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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.