Home / 77,943.75-116,935.47-21,783.89

Finding the Fourth Proportional to 77,943.75, 116,935.47 and 21,783.89

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Solution

The fourth proportional to 77,943.75, 116,935.47 and 21,783.89 is: 32,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,943.75 : 116,935.47 = 21,783.89 : x
  2. Step 2: Convert to fraction form
    77,943.75/116,935.47 = 21,783.89/x
  3. Step 3: Cross multiply
    77,943.75x = 116,935.47 × 21,783.89
  4. Step 4: Simplify right side
    77,943.75x = 2,547,308,830.90
  5. Step 5: Solve for x
    x = 2,547,308,830.90/77,943.75
  6. Step 6: Final answer
    x = 32,681.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.