Home / 76,282.40-105,275.93-42,301.53

Finding the Fourth Proportional to 76,282.40, 105,275.93 and 42,301.53

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Solution

The fourth proportional to 76,282.40, 105,275.93 and 42,301.53 is: 58,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,282.40 : 105,275.93 = 42,301.53 : x
  2. Step 2: Convert to fraction form
    76,282.40/105,275.93 = 42,301.53/x
  3. Step 3: Cross multiply
    76,282.40x = 105,275.93 × 42,301.53
  4. Step 4: Simplify right side
    76,282.40x = 4,453,332,699.67
  5. Step 5: Solve for x
    x = 4,453,332,699.67/76,282.40
  6. Step 6: Final answer
    x = 58,379.55

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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.