Home / 84,931.38-127,438.59-60,130.80

Finding the Fourth Proportional to 84,931.38, 127,438.59 and 60,130.80

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Solution

The fourth proportional to 84,931.38, 127,438.59 and 60,130.80 is: 90,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,931.38 : 127,438.59 = 60,130.80 : x
  2. Step 2: Convert to fraction form
    84,931.38/127,438.59 = 60,130.80/x
  3. Step 3: Cross multiply
    84,931.38x = 127,438.59 × 60,130.80
  4. Step 4: Simplify right side
    84,931.38x = 7,662,984,367.57
  5. Step 5: Solve for x
    x = 7,662,984,367.57/84,931.38
  6. Step 6: Final answer
    x = 90,225.60

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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.