Home / 85,955.13-129,014.75-52,740.07

Finding the Fourth Proportional to 85,955.13, 129,014.75 and 52,740.07

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Solution

The fourth proportional to 85,955.13, 129,014.75 and 52,740.07 is: 79,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,955.13 : 129,014.75 = 52,740.07 : x
  2. Step 2: Convert to fraction form
    85,955.13/129,014.75 = 52,740.07/x
  3. Step 3: Cross multiply
    85,955.13x = 129,014.75 × 52,740.07
  4. Step 4: Simplify right side
    85,955.13x = 6,804,246,755.35
  5. Step 5: Solve for x
    x = 6,804,246,755.35/85,955.13
  6. Step 6: Final answer
    x = 79,160.45

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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.