Home / 85,554.24-128,042.24-61,088.96

Finding the Fourth Proportional to 85,554.24, 128,042.24 and 61,088.96

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Solution

The fourth proportional to 85,554.24, 128,042.24 and 61,088.96 is: 91,427.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,554.24 : 128,042.24 = 61,088.96 : x
  2. Step 2: Convert to fraction form
    85,554.24/128,042.24 = 61,088.96/x
  3. Step 3: Cross multiply
    85,554.24x = 128,042.24 × 61,088.96
  4. Step 4: Simplify right side
    85,554.24x = 7,821,967,277.67
  5. Step 5: Solve for x
    x = 7,821,967,277.67/85,554.24
  6. Step 6: Final answer
    x = 91,427.00

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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.