Home / 85,844.34-128,740.14-59,360.48

Finding the Fourth Proportional to 85,844.34, 128,740.14 and 59,360.48

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Solution

The fourth proportional to 85,844.34, 128,740.14 and 59,360.48 is: 89,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,844.34 : 128,740.14 = 59,360.48 : x
  2. Step 2: Convert to fraction form
    85,844.34/128,740.14 = 59,360.48/x
  3. Step 3: Cross multiply
    85,844.34x = 128,740.14 × 59,360.48
  4. Step 4: Simplify right side
    85,844.34x = 7,642,076,505.67
  5. Step 5: Solve for x
    x = 7,642,076,505.67/85,844.34
  6. Step 6: Final answer
    x = 89,022.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.