Home / 78,060.67-107,726.34-47,840.16

Finding the Fourth Proportional to 78,060.67, 107,726.34 and 47,840.16

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Solution

The fourth proportional to 78,060.67, 107,726.34 and 47,840.16 is: 66,021.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,060.67 : 107,726.34 = 47,840.16 : x
  2. Step 2: Convert to fraction form
    78,060.67/107,726.34 = 47,840.16/x
  3. Step 3: Cross multiply
    78,060.67x = 107,726.34 × 47,840.16
  4. Step 4: Simplify right side
    78,060.67x = 5,153,644,563.98
  5. Step 5: Solve for x
    x = 5,153,644,563.98/78,060.67
  6. Step 6: Final answer
    x = 66,021.01

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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.