Home / 85,323.49-117,554.12-59,457.66

Finding the Fourth Proportional to 85,323.49, 117,554.12 and 59,457.66

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Solution

The fourth proportional to 85,323.49, 117,554.12 and 59,457.66 is: 81,917.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,323.49 : 117,554.12 = 59,457.66 : x
  2. Step 2: Convert to fraction form
    85,323.49/117,554.12 = 59,457.66/x
  3. Step 3: Cross multiply
    85,323.49x = 117,554.12 × 59,457.66
  4. Step 4: Simplify right side
    85,323.49x = 6,989,492,753.32
  5. Step 5: Solve for x
    x = 6,989,492,753.32/85,323.49
  6. Step 6: Final answer
    x = 81,917.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.