Home / 85,669.60-118,221.51-47,430.85

Finding the Fourth Proportional to 85,669.60, 118,221.51 and 47,430.85

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Solution

The fourth proportional to 85,669.60, 118,221.51 and 47,430.85 is: 65,453.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,669.60 : 118,221.51 = 47,430.85 : x
  2. Step 2: Convert to fraction form
    85,669.60/118,221.51 = 47,430.85/x
  3. Step 3: Cross multiply
    85,669.60x = 118,221.51 × 47,430.85
  4. Step 4: Simplify right side
    85,669.60x = 5,607,346,707.58
  5. Step 5: Solve for x
    x = 5,607,346,707.58/85,669.60
  6. Step 6: Final answer
    x = 65,453.17

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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.