Home / 85,578.48-118,026.60-64,118.64

Finding the Fourth Proportional to 85,578.48, 118,026.60 and 64,118.64

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Solution

The fourth proportional to 85,578.48, 118,026.60 and 64,118.64 is: 88,430.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,578.48 : 118,026.60 = 64,118.64 : x
  2. Step 2: Convert to fraction form
    85,578.48/118,026.60 = 64,118.64/x
  3. Step 3: Cross multiply
    85,578.48x = 118,026.60 × 64,118.64
  4. Step 4: Simplify right side
    85,578.48x = 7,567,705,075.82
  5. Step 5: Solve for x
    x = 7,567,705,075.82/85,578.48
  6. Step 6: Final answer
    x = 88,430.00

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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.