Home / 78,010.02-117,014.94-31,295.70

Finding the Fourth Proportional to 78,010.02, 117,014.94 and 31,295.70

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Solution

The fourth proportional to 78,010.02, 117,014.94 and 31,295.70 is: 46,943.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,010.02 : 117,014.94 = 31,295.70 : x
  2. Step 2: Convert to fraction form
    78,010.02/117,014.94 = 31,295.70/x
  3. Step 3: Cross multiply
    78,010.02x = 117,014.94 × 31,295.70
  4. Step 4: Simplify right side
    78,010.02x = 3,662,064,457.76
  5. Step 5: Solve for x
    x = 3,662,064,457.76/78,010.02
  6. Step 6: Final answer
    x = 46,943.51

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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.