Home / 76,295.16-105,279.71-42,302.81

Finding the Fourth Proportional to 76,295.16, 105,279.71 and 42,302.81

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Solution

The fourth proportional to 76,295.16, 105,279.71 and 42,302.81 is: 58,373.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,295.16 : 105,279.71 = 42,302.81 : x
  2. Step 2: Convert to fraction form
    76,295.16/105,279.71 = 42,302.81/x
  3. Step 3: Cross multiply
    76,295.16x = 105,279.71 × 42,302.81
  4. Step 4: Simplify right side
    76,295.16x = 4,453,627,620.67
  5. Step 5: Solve for x
    x = 4,453,627,620.67/76,295.16
  6. Step 6: Final answer
    x = 58,373.66

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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.