Home / 85,554.64-128,344.02-26,395.12

Finding the Fourth Proportional to 85,554.64, 128,344.02 and 26,395.12

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Solution

The fourth proportional to 85,554.64, 128,344.02 and 26,395.12 is: 39,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,554.64 : 128,344.02 = 26,395.12 : x
  2. Step 2: Convert to fraction form
    85,554.64/128,344.02 = 26,395.12/x
  3. Step 3: Cross multiply
    85,554.64x = 128,344.02 × 26,395.12
  4. Step 4: Simplify right side
    85,554.64x = 3,387,655,809.18
  5. Step 5: Solve for x
    x = 3,387,655,809.18/85,554.64
  6. Step 6: Final answer
    x = 39,596.40

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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.