Home / 93,210.24-128,630.40-55,484.16

Finding the Fourth Proportional to 93,210.24, 128,630.40 and 55,484.16

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Solution

The fourth proportional to 93,210.24, 128,630.40 and 55,484.16 is: 76,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,210.24 : 128,630.40 = 55,484.16 : x
  2. Step 2: Convert to fraction form
    93,210.24/128,630.40 = 55,484.16/x
  3. Step 3: Cross multiply
    93,210.24x = 128,630.40 × 55,484.16
  4. Step 4: Simplify right side
    93,210.24x = 7,136,949,694.46
  5. Step 5: Solve for x
    x = 7,136,949,694.46/93,210.24
  6. Step 6: Final answer
    x = 76,568.30

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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.