Home / 77,011.57-106,278.24-43,021.50

Finding the Fourth Proportional to 77,011.57, 106,278.24 and 43,021.50

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Solution

The fourth proportional to 77,011.57, 106,278.24 and 43,021.50 is: 59,370.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,011.57 : 106,278.24 = 43,021.50 : x
  2. Step 2: Convert to fraction form
    77,011.57/106,278.24 = 43,021.50/x
  3. Step 3: Cross multiply
    77,011.57x = 106,278.24 × 43,021.50
  4. Step 4: Simplify right side
    77,011.57x = 4,572,249,302.16
  5. Step 5: Solve for x
    x = 4,572,249,302.16/77,011.57
  6. Step 6: Final answer
    x = 59,370.94

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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.