Home / 93,036.74-128,438.37-62,981.06

Finding the Fourth Proportional to 93,036.74, 128,438.37 and 62,981.06

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Solution

The fourth proportional to 93,036.74, 128,438.37 and 62,981.06 is: 86,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,036.74 : 128,438.37 = 62,981.06 : x
  2. Step 2: Convert to fraction form
    93,036.74/128,438.37 = 62,981.06/x
  3. Step 3: Cross multiply
    93,036.74x = 128,438.37 × 62,981.06
  4. Step 4: Simplify right side
    93,036.74x = 8,089,184,687.27
  5. Step 5: Solve for x
    x = 8,089,184,687.27/93,036.74
  6. Step 6: Final answer
    x = 86,946.13

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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.