Home / 93,039.48-128,423.72-52,780.01

Finding the Fourth Proportional to 93,039.48, 128,423.72 and 52,780.01

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Solution

The fourth proportional to 93,039.48, 128,423.72 and 52,780.01 is: 72,852.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,039.48 : 128,423.72 = 52,780.01 : x
  2. Step 2: Convert to fraction form
    93,039.48/128,423.72 = 52,780.01/x
  3. Step 3: Cross multiply
    93,039.48x = 128,423.72 × 52,780.01
  4. Step 4: Simplify right side
    93,039.48x = 6,778,204,715.67
  5. Step 5: Solve for x
    x = 6,778,204,715.67/93,039.48
  6. Step 6: Final answer
    x = 72,852.99

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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.