Home / 85,598.16-128,147.40-49,950.24

Finding the Fourth Proportional to 85,598.16, 128,147.40 and 49,950.24

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Solution

The fourth proportional to 85,598.16, 128,147.40 and 49,950.24 is: 74,779.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,598.16 : 128,147.40 = 49,950.24 : x
  2. Step 2: Convert to fraction form
    85,598.16/128,147.40 = 49,950.24/x
  3. Step 3: Cross multiply
    85,598.16x = 128,147.40 × 49,950.24
  4. Step 4: Simplify right side
    85,598.16x = 6,400,993,385.38
  5. Step 5: Solve for x
    x = 6,400,993,385.38/85,598.16
  6. Step 6: Final answer
    x = 74,779.57

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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.