Home / 105,330.49-145,352.94-57,582.88

Finding the Fourth Proportional to 105,330.49, 145,352.94 and 57,582.88

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Solution

The fourth proportional to 105,330.49, 145,352.94 and 57,582.88 is: 79,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,330.49 : 145,352.94 = 57,582.88 : x
  2. Step 2: Convert to fraction form
    105,330.49/145,352.94 = 57,582.88/x
  3. Step 3: Cross multiply
    105,330.49x = 145,352.94 × 57,582.88
  4. Step 4: Simplify right side
    105,330.49x = 8,369,840,901.67
  5. Step 5: Solve for x
    x = 8,369,840,901.67/105,330.49
  6. Step 6: Final answer
    x = 79,462.66

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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.