Home / 86,169.48-118,875.72-57,461.40

Finding the Fourth Proportional to 86,169.48, 118,875.72 and 57,461.40

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Solution

The fourth proportional to 86,169.48, 118,875.72 and 57,461.40 is: 79,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,169.48 : 118,875.72 = 57,461.40 : x
  2. Step 2: Convert to fraction form
    86,169.48/118,875.72 = 57,461.40/x
  3. Step 3: Cross multiply
    86,169.48x = 118,875.72 × 57,461.40
  4. Step 4: Simplify right side
    86,169.48x = 6,830,765,297.21
  5. Step 5: Solve for x
    x = 6,830,765,297.21/86,169.48
  6. Step 6: Final answer
    x = 79,271.28

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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.