Home / 64,885.14-89,547.77-39,385.64

Finding the Fourth Proportional to 64,885.14, 89,547.77 and 39,385.64

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Solution

The fourth proportional to 64,885.14, 89,547.77 and 39,385.64 is: 54,356.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,885.14 : 89,547.77 = 39,385.64 : x
  2. Step 2: Convert to fraction form
    64,885.14/89,547.77 = 39,385.64/x
  3. Step 3: Cross multiply
    64,885.14x = 89,547.77 × 39,385.64
  4. Step 4: Simplify right side
    64,885.14x = 3,526,896,554.36
  5. Step 5: Solve for x
    x = 3,526,896,554.36/64,885.14
  6. Step 6: Final answer
    x = 54,356.00

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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.