Home / 71,778.16-99,058.44-43,490.80

Finding the Fourth Proportional to 71,778.16, 99,058.44 and 43,490.80

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Solution

The fourth proportional to 71,778.16, 99,058.44 and 43,490.80 is: 60,020.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,778.16 : 99,058.44 = 43,490.80 : x
  2. Step 2: Convert to fraction form
    71,778.16/99,058.44 = 43,490.80/x
  3. Step 3: Cross multiply
    71,778.16x = 99,058.44 × 43,490.80
  4. Step 4: Simplify right side
    71,778.16x = 4,308,130,802.35
  5. Step 5: Solve for x
    x = 4,308,130,802.35/71,778.16
  6. Step 6: Final answer
    x = 60,020.08

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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.