Home / 84,417.84-126,561.12-42,276.28

Finding the Fourth Proportional to 84,417.84, 126,561.12 and 42,276.28

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Solution

The fourth proportional to 84,417.84, 126,561.12 and 42,276.28 is: 63,381.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,417.84 : 126,561.12 = 42,276.28 : x
  2. Step 2: Convert to fraction form
    84,417.84/126,561.12 = 42,276.28/x
  3. Step 3: Cross multiply
    84,417.84x = 126,561.12 × 42,276.28
  4. Step 4: Simplify right side
    84,417.84x = 5,350,533,346.23
  5. Step 5: Solve for x
    x = 5,350,533,346.23/84,417.84
  6. Step 6: Final answer
    x = 63,381.55

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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.