Home / 67,428.04-93,031.51-40,557.10

Finding the Fourth Proportional to 67,428.04, 93,031.51 and 40,557.10

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Solution

The fourth proportional to 67,428.04, 93,031.51 and 40,557.10 is: 55,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,428.04 : 93,031.51 = 40,557.10 : x
  2. Step 2: Convert to fraction form
    67,428.04/93,031.51 = 40,557.10/x
  3. Step 3: Cross multiply
    67,428.04x = 93,031.51 × 40,557.10
  4. Step 4: Simplify right side
    67,428.04x = 3,773,087,586.28
  5. Step 5: Solve for x
    x = 3,773,087,586.28/67,428.04
  6. Step 6: Final answer
    x = 55,957.25

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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.