Home / 85,822.54-128,770.95-46,407.58

Finding the Fourth Proportional to 85,822.54, 128,770.95 and 46,407.58

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Solution

The fourth proportional to 85,822.54, 128,770.95 and 46,407.58 is: 69,631.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,822.54 : 128,770.95 = 46,407.58 : x
  2. Step 2: Convert to fraction form
    85,822.54/128,770.95 = 46,407.58/x
  3. Step 3: Cross multiply
    85,822.54x = 128,770.95 × 46,407.58
  4. Step 4: Simplify right side
    85,822.54x = 5,975,948,163.80
  5. Step 5: Solve for x
    x = 5,975,948,163.80/85,822.54
  6. Step 6: Final answer
    x = 69,631.45

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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.