Home / 56,669.50-78,203.91-31,518.46

Finding the Fourth Proportional to 56,669.50, 78,203.91 and 31,518.46

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Solution

The fourth proportional to 56,669.50, 78,203.91 and 31,518.46 is: 43,495.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,669.50 : 78,203.91 = 31,518.46 : x
  2. Step 2: Convert to fraction form
    56,669.50/78,203.91 = 31,518.46/x
  3. Step 3: Cross multiply
    56,669.50x = 78,203.91 × 31,518.46
  4. Step 4: Simplify right side
    56,669.50x = 2,464,866,809.18
  5. Step 5: Solve for x
    x = 2,464,866,809.18/56,669.50
  6. Step 6: Final answer
    x = 43,495.47

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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.