Home / 86,317.47-129,420.85-59,588.57

Finding the Fourth Proportional to 86,317.47, 129,420.85 and 59,588.57

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Solution

The fourth proportional to 86,317.47, 129,420.85 and 59,588.57 is: 89,344.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,317.47 : 129,420.85 = 59,588.57 : x
  2. Step 2: Convert to fraction form
    86,317.47/129,420.85 = 59,588.57/x
  3. Step 3: Cross multiply
    86,317.47x = 129,420.85 × 59,588.57
  4. Step 4: Simplify right side
    86,317.47x = 7,712,003,931.79
  5. Step 5: Solve for x
    x = 7,712,003,931.79/86,317.47
  6. Step 6: Final answer
    x = 89,344.64

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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.