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Finding the Fourth Proportional to 70,328.95, 97,045.35 and 56,025.20

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Solution

The fourth proportional to 70,328.95, 97,045.35 and 56,025.20 is: 77,307.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,328.95 : 97,045.35 = 56,025.20 : x
  2. Step 2: Convert to fraction form
    70,328.95/97,045.35 = 56,025.20/x
  3. Step 3: Cross multiply
    70,328.95x = 97,045.35 × 56,025.20
  4. Step 4: Simplify right side
    70,328.95x = 5,436,985,142.82
  5. Step 5: Solve for x
    x = 5,436,985,142.82/70,328.95
  6. Step 6: Final answer
    x = 77,307.93

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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.