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Finding the Fourth Proportional to 85,943.34, 118,602.72 and 47,703.60

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Solution

The fourth proportional to 85,943.34, 118,602.72 and 47,703.60 is: 65,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,943.34 : 118,602.72 = 47,703.60 : x
  2. Step 2: Convert to fraction form
    85,943.34/118,602.72 = 47,703.60/x
  3. Step 3: Cross multiply
    85,943.34x = 118,602.72 × 47,703.60
  4. Step 4: Simplify right side
    85,943.34x = 5,657,776,713.79
  5. Step 5: Solve for x
    x = 5,657,776,713.79/85,943.34
  6. Step 6: Final answer
    x = 65,831.47

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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.