Home / 58,712.40-81,080.63-40,609.48

Finding the Fourth Proportional to 58,712.40, 81,080.63 and 40,609.48

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Solution

The fourth proportional to 58,712.40, 81,080.63 and 40,609.48 is: 56,080.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,712.40 : 81,080.63 = 40,609.48 : x
  2. Step 2: Convert to fraction form
    58,712.40/81,080.63 = 40,609.48/x
  3. Step 3: Cross multiply
    58,712.40x = 81,080.63 × 40,609.48
  4. Step 4: Simplify right side
    58,712.40x = 3,292,642,222.37
  5. Step 5: Solve for x
    x = 3,292,642,222.37/58,712.40
  6. Step 6: Final answer
    x = 56,080.87

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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.