Home / 93,417.36-128,915.96-66,606.58

Finding the Fourth Proportional to 93,417.36, 128,915.96 and 66,606.58

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Solution

The fourth proportional to 93,417.36, 128,915.96 and 66,606.58 is: 91,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,417.36 : 128,915.96 = 66,606.58 : x
  2. Step 2: Convert to fraction form
    93,417.36/128,915.96 = 66,606.58/x
  3. Step 3: Cross multiply
    93,417.36x = 128,915.96 × 66,606.58
  4. Step 4: Simplify right side
    93,417.36x = 8,586,651,294.00
  5. Step 5: Solve for x
    x = 8,586,651,294.00/93,417.36
  6. Step 6: Final answer
    x = 91,917.08

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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.