Home / 65,130.41-89,897.65-38,281.55

Finding the Fourth Proportional to 65,130.41, 89,897.65 and 38,281.55

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Solution

The fourth proportional to 65,130.41, 89,897.65 and 38,281.55 is: 52,838.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,130.41 : 89,897.65 = 38,281.55 : x
  2. Step 2: Convert to fraction form
    65,130.41/89,897.65 = 38,281.55/x
  3. Step 3: Cross multiply
    65,130.41x = 89,897.65 × 38,281.55
  4. Step 4: Simplify right side
    65,130.41x = 3,441,420,838.17
  5. Step 5: Solve for x
    x = 3,441,420,838.17/65,130.41
  6. Step 6: Final answer
    x = 52,838.92

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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.