Home / 85,734.63-128,608.08-29,573.91

Finding the Fourth Proportional to 85,734.63, 128,608.08 and 29,573.91

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Solution

The fourth proportional to 85,734.63, 128,608.08 and 29,573.91 is: 44,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,734.63 : 128,608.08 = 29,573.91 : x
  2. Step 2: Convert to fraction form
    85,734.63/128,608.08 = 29,573.91/x
  3. Step 3: Cross multiply
    85,734.63x = 128,608.08 × 29,573.91
  4. Step 4: Simplify right side
    85,734.63x = 3,803,443,783.19
  5. Step 5: Solve for x
    x = 3,803,443,783.19/85,734.63
  6. Step 6: Final answer
    x = 44,362.98

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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.