Home / 87,386.06-130,777.90-53,629.67

Finding the Fourth Proportional to 87,386.06, 130,777.90 and 53,629.67

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Solution

The fourth proportional to 87,386.06, 130,777.90 and 53,629.67 is: 80,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,386.06 : 130,777.90 = 53,629.67 : x
  2. Step 2: Convert to fraction form
    87,386.06/130,777.90 = 53,629.67/x
  3. Step 3: Cross multiply
    87,386.06x = 130,777.90 × 53,629.67
  4. Step 4: Simplify right side
    87,386.06x = 7,013,574,966.40
  5. Step 5: Solve for x
    x = 7,013,574,966.40/87,386.06
  6. Step 6: Final answer
    x = 80,259.66

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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.